Cannot switch to purged history / history actions not available

[mvdbeek]

I want to extract a workflow from a purged history. This used to be possible, but it's not now since I can't switch to that history.
Generally speaking I should be able to make a purged history my current history.

[davelopez]

I'm going to make purged and archived histories able to be set as current and then restrict the UI options where appropriate. I can see the value in it. But when I lift the immutable restriction I don't seem to be able to really set purged histories as current. Apparently, this really old condition prevents it:

galaxy/lib/galaxy/webapps/base/webapp.py

Line 915 in 37aeadd

if history and not history.deleted:

I want to make sure if I should target 24.0 as a fix or if changing this would have other implications that should be moved to dev.

[davelopez]

Switching to non-active histories should be possible now with #18234
Regarding extracting a workflow out of a purged history that is not working, we probably should create a new issue for that if it was working in the past.