[BugFix] Reinitialize vmap callers after reset of vmap randomness

[vmoens]

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[pytorch-bot[bot]]

:link: Helpful Links

:test_tube: See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/rl/2314

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:x: 11 New Failures, 1 Cancelled Job, 1 Pending, 5 Unrelated Failures

As of commit c7947fad602edda69318f653fe2ed61b241a0f8e with merge base f840a1a4364bbb0bd33fbff7c4554e75af3ee1db ():

NEW FAILURES - The following jobs have failed:

* [Continuous Benchmark (PR) / CPU Pytest benchmark](https://hud.pytorch.org/pr/pytorch/rl/2314#27843453764) ([gh](https://github.com/pytorch/rl/actions/runs/10072117562/job/27843453764)) `Process completed with exit code 1.` * [Continuous Benchmark (PR) / GPU Pytest benchmark](https://hud.pytorch.org/pr/pytorch/rl/2314#27843454398) ([gh](https://github.com/pytorch/rl/actions/runs/10072117562/job/27843454398)) `Process completed with exit code 1.` * [Generate documentation / build-docs (3.9, 12.1) / linux-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843456008) ([gh](https://github.com/pytorch/rl/actions/runs/10072117563/job/27843456008)) `No files were found with the provided path: /home/ec2-user/actions-runner/_work/_temp/artifacts/. No artifacts will be uploaded.` * [Habitat Tests on Linux / tests (3.9, 12.1) / linux-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843455687) ([gh](https://github.com/pytorch/rl/actions/runs/10072117574/job/27843455687)) `RuntimeError: Command docker exec -t 859512d1b71b2a3539e5a55bf3c9f3056eb994c2b9341f6cd1a8eb065452fcf9 /exec failed with exit code 139` * [Lint / python-source-and-configs / linux-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843455496) ([gh](https://github.com/pytorch/rl/actions/runs/10072117575/job/27843455496)) `RuntimeError: Command docker exec -t e5fd67037564cced340002ce5c85ee0b23bd8c2e325dcf865f8c24bdd3b4e317 /exec failed with exit code 1` * [Unit-tests on Linux / tests-cpu (3.10) / linux-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843456119) ([gh](https://github.com/pytorch/rl/actions/runs/10072117567/job/27843456119)) `test/test_cost.py::TestCQL::test_cql_reduction[sum]` * [Unit-tests on Linux / tests-cpu (3.11) / linux-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843456736) ([gh](https://github.com/pytorch/rl/actions/runs/10072117567/job/27843456736)) `test/test_cost.py::TestCQL::test_cql_reduction[sum]` * [Unit-tests on Linux / tests-cpu (3.8) / linux-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843457298) ([gh](https://github.com/pytorch/rl/actions/runs/10072117567/job/27843457298)) `test/test_cost.py::TestCQL::test_cql_reduction[sum]` * [Unit-tests on Linux / tests-cpu (3.9) / linux-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843458617) ([gh](https://github.com/pytorch/rl/actions/runs/10072117567/job/27843458617)) `test/test_cost.py::TestCQL::test_cql_reduction[sum]` * [Unit-tests on Linux / tests-gpu (3.10, 12.1) / linux-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843457961) ([gh](https://github.com/pytorch/rl/actions/runs/10072117567/job/27843457961)) `test/test_cost.py::TestCQL::test_cql_reduction[sum]` * [Unit-tests on Windows / unittests-cpu / windows-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843454379) ([gh](https://github.com/pytorch/rl/actions/runs/10072117581/job/27843454379)) `The process 'C:\Program Files\Git\cmd\git.exe' failed with exit code 128`

CANCELLED JOB - The following job was cancelled. Please retry:

* [Examples Tests on Linux / tests (3.9, 12.1) / linux-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843455601) ([gh](https://github.com/pytorch/rl/actions/runs/10072117566/job/27843455601)) `##[error]The operation was canceled.`

FLAKY - The following jobs failed but were likely due to flakiness present on trunk:

* [Libs Tests on Linux / unittests-gym (3.9, 12.1) / linux-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843462231) ([gh](https://github.com/pytorch/rl/actions/runs/10072117570/job/27843462231)) (matched **linux** rule in [flaky-rules.json](https://github.com/pytorch/test-infra/blob/generated-stats/stats/flaky-rules.json)) `The process '/usr/bin/git' failed with exit code 128` * [Libs Tests on Linux / unittests-sklearn (3.9, 12.1) / linux-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843462507) ([gh](https://github.com/pytorch/rl/actions/runs/10072117570/job/27843462507)) (matched **linux** rule in [flaky-rules.json](https://github.com/pytorch/test-infra/blob/generated-stats/stats/flaky-rules.json)) `The process '/usr/bin/git' failed with exit code 128` * [Unit-tests on Linux / tests-olddeps (3.8, 11.6) / linux-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843459024) ([gh](https://github.com/pytorch/rl/actions/runs/10072117567/job/27843459024)) (matched **linux** rule in [flaky-rules.json](https://github.com/pytorch/test-infra/blob/generated-stats/stats/flaky-rules.json)) `The process '/usr/bin/git' failed with exit code 128` * [Unit-tests on Linux / tests-optdeps (3.10, 12.1) / linux-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843459449) ([gh](https://github.com/pytorch/rl/actions/runs/10072117567/job/27843459449)) (matched **linux** rule in [flaky-rules.json](https://github.com/pytorch/test-infra/blob/generated-stats/stats/flaky-rules.json)) `The process '/usr/bin/git' failed with exit code 128` * [Unit-tests on Linux / tests-stable-gpu (3.10, 11.8) / linux-job](https://hud.pytorch.org/pr/pytorch/rl/2314#27843459931) ([gh](https://github.com/pytorch/rl/actions/runs/10072117567/job/27843459931)) (matched **linux** rule in [flaky-rules.json](https://github.com/pytorch/test-infra/blob/generated-stats/stats/flaky-rules.json)) `The process '/usr/bin/git' failed with exit code 128`

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