Do not modify provisioned envdir when --devenv is specified

[isaac-ped]

This change prevents --devenv from changing the envdir for the .tox environment

Fixes #2065

• wrote descriptive pull request text
• added/updated test(s)
• updated/extended the documentation
• added relevant issue keyword
  in message body
• added news fragment in changelog folder
  • fragment name: <issue number>.<type>.rst for example (588.bugfix.rst)
  • <type> is must be one of bugfix, feature, deprecation,breaking, doc, misc
  • if PR has no issue: consider creating one first or change it to the PR number after creating the PR
  • "sign" fragment with "by :user:<your username>"
  • please use full sentences with correct case and punctuation, for example: "Fix issue with non-ascii contents in doctest text files - by :user:superuser."
  • also see examples
• added yourself to CONTRIBUTORS (preserving alphabetical order)

[jugmac00]

I had no chance to look closer, but anyway, could you please add a changelog entry? Thank you.

[isaac-ped]

I had no chance to look closer, but anyway, could you please add a changelog entry? Thank you.

I was unsure if it was intensional for my changelog file to be the only one in that directory, and didn't realize that was the cause of the Timeline protection failure. Given that it fixed the failing CI, I'm guessing that was indeed the correct location for it.

[jugmac00]

I had no chance to look closer, but anyway, could you please add a changelog entry? Thank you.

I was unsure if it was intensional for my changelog file to be the only one in that directory, and didn't realize that was the cause of the Timeline protection failure. Given that it fixed the failing CI, I'm guessing that was indeed the correct location for it.

Yes, you are absolutely right. We use https://pypi.org/project/towncrier/ for changelogs. One of the great advantages is, that there are no merge conflicts because of the change log, as the changelog is only built when there is a new release. Compare this to the situtation, when e.g. 10 pull requests are open - as soon as the first one gets merged, all the others would have to rebase over and over again.

[gaborbernat]