Bugfix manage call and merge project test code

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and project coverage change: +1.54 :tada:

Comparison is base (54aab2b) 68.65% compared to head (c2b7d07) 70.20%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #72 +/- ## ========================================== + Coverage 68.65% 70.20% +1.54% ========================================== Files 63 63 Lines 2227 2245 +18 Branches 237 236 -1 ========================================== + Hits 1529 1576 +47 + Misses 695 666 -29 Partials 3 3 ``` | [Impacted Files](https://codecov.io/gh/jedie/django-for-runners/pull/72?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Jens+Diemer) | Coverage Δ | | |---|---|---| | [for\_runners/admin/gpx.py](https://codecov.io/gh/jedie/django-for-runners/pull/72?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Jens+Diemer#diff-Zm9yX3J1bm5lcnMvYWRtaW4vZ3B4LnB5) | `56.44% <100.00%> (+1.80%)` | :arrow_up: | | [for\_runners/models/gpx.py](https://codecov.io/gh/jedie/django-for-runners/pull/72?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Jens+Diemer#diff-Zm9yX3J1bm5lcnMvbW9kZWxzL2dweC5weQ==) | `72.40% <100.00%> (+0.62%)` | :arrow_up: | | [for\_runners\_project/\_\_init\_\_.py](https://codecov.io/gh/jedie/django-for-runners/pull/72?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Jens+Diemer#diff-Zm9yX3J1bm5lcnNfcHJvamVjdC9fX2luaXRfXy5weQ==) | `100.00% <100.00%> (ø)` | | | [for\_runners\_project/\_\_main\_\_.py](https://codecov.io/gh/jedie/django-for-runners/pull/72?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Jens+Diemer#diff-Zm9yX3J1bm5lcnNfcHJvamVjdC9fX21haW5fXy5weQ==) | `100.00% <100.00%> (ø)` | | ... and [1 file with indirect coverage changes](https://codecov.io/gh/jedie/django-for-runners/pull/72/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Jens+Diemer) Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Jens+Diemer). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Jens+Diemer)

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