Cannot delete outline activity without content when using s3 as storage provider

[zcuric]

I'm submitting a...

• [x] Bug report
• [ ] Regression (a behavior that used to work and stopped working in a new release)
• [ ] Feature request
• [ ] Documentation issue or request

Expected Behavior

• When creating a root level, outline activity that has no content, I should be able to delete it in all cases regardless of storage providers

Current Behavior

• When creating a root level, outline activity that has no content, I can only delete it if the storage provider is filesystem. If amazon is used as storage provider, because of there is no content on outline activity, It cannot find fullpath.

Steps to Reproduce

1. Make sure that you have scheme with rootLevel activity that servers as outline (folder0
2. Add one and published it
3. Try to delete it

Failure Logs

* Server log:
1|TAILOR  | {"name":"tailor","hostname":"ip-172-31-34-161","pid":24351,"level":50,"err":{"message":"The XML you provided was not well-formed or did not validate against our published schema","name":"MalformedXML","stack":"MalformedXML: The XML you provided was not well-formed or did not validate against our published schema\n    at Request.extractError (/home/ubuntu/tailor/source/node_modules/aws-sdk/lib/services/s3.js:700:35)\n    at Request.callListeners (/home/ubuntu/tailor/source/node_modules/aws-sdk/lib/sequential_executor.js:106:20)\n    at Request.emit (/home/ubuntu/tailor/source/node_modules/aws-sdk/lib/sequential_executor.js:78:10)\n    at Request.emit (/home/ubuntu/tailor/source/node_modules/aws-sdk/lib/request.js:688:14)\n    at Request.transition (/home/ubuntu/tailor/source/node_modules/aws-sdk/lib/request.js:22:10)\n    at AcceptorStateMachine.runTo (/home/ubuntu/tailor/source/node_modules/aws-sdk/lib/state_machine.js:14:12)\n    at /home/ubuntu/tailor/source/node_modules/aws-sdk/lib/state_machine.js:26:10\n    at Request.<anonymous> (/home/ubuntu/tailor/source/node_modules/aws-sdk/lib/request.js:38:9)\n    at Request.<anonymous> (/home/ubuntu/tailor/source/node_modules/aws-sdk/lib/request.js:690:12)\n    at Request.callListeners (/home/ubuntu/tailor/source/node_modules/aws-sdk/lib/sequential_executor.js:116:18)\n    at Request.emit (/home/ubuntu/tailor/source/node_modules/aws-sdk/lib/sequential_executor.js:78:10)\n    at Request.emit (/home/ubuntu/tailor/source/node_modules/aws-sdk/lib/request.js:688:14)\n    at Request.transition (/home/ubuntu/tailor/source/node_modules/aws-sdk/lib/request.js:22:10)\n    at AcceptorStateMachine.runTo (/home/ubuntu/tailor/source/node_modules/aws-sdk/lib/state_machine.js:14:12)\n    at /home/ubuntu/tailor/source/node_modules/aws-sdk/lib/state_machine.js:26:10\n    at Request.<anonymous> (/home/ubuntu/tailor/source/node_modules/aws-sdk/lib/request.js:38:9)","code":"MalformedXML"},"msg":"The XML you provided was not well-formed or did not validate against our published schema","time":"2021-06-15T10:19:15.979Z","v":0}```