switch displays incorrect if set-parent was previous used on perennial branch

[tranhl]

Let's say I have a branch called release-v1.0.0. Logically speaking it is a perennial branch, but for whatever reason it was not set as a perennial either via perennial-branches or perennial-regex. If I set its parent to main, then Git Town will keep track of it as a feature branch by adding the following to the local Git config file:

[git-town-branch "release-v1.0.0"]
	parent = main

So according to Git Town, release-v1.0.0 is considered a feature branch. Now if set perennial-regex to release-.* and run gt switch, I will see this:

* main
>   release-v1.0.0


  ↑/k up   ↓/j down   ←/u 10 up   →/d 10 down   enter/o accept   q/esc/ctrl-c abort

However, this is technically not correct, as release-v1.0.0 is perennial and technically shouldn't have a parent anymore. I expect switch to show me this instead:

* main
> release-v1.0.0


  ↑/k up   ↓/j down   ←/u 10 up   →/d 10 down   enter/o accept   q/esc/ctrl-c abort

Which correctly indicates that release-v1.0.0 is perennial. As part of the switch command, perhaps we could clean up branch config from the local Git config file to correctly?

I believe this would be need to be addressed in order to complete #3164 as well, since in case where this happens, what would Git Town consider the branch type for release-v1.0.0 to be?

[tranhl]

FYI for anyone experiencing this - fixing this is as simple as removing the offending git-town-branch config item from .git/config.

[kevgo]

Confirming that this is a bug in git switch. If a branch is listed as a perennial branch, it should be treated as such, and any parent branch set for it should be ignored.

The CLI command to remove the config entry is:

git config --unset <entry key>

In this case:

git config --unset git-town-branch.release-v1.0.0.parent

[kevgo]

Rather than ignoring the parent entries in all Git Town commands, the correct course of action seems to remove the wrong parent entries so that they don't cause other problems as well.

[kevgo]

This is shipped in v13. Enjoy!