When creating a tag with an underscore, say
wm_activate, the underscore is automatically modified to a hyphen: wm-activate, which is by design.
Now, if you enter the tag
[wm_paint] in the search criteria, then the underscore is deleted:
[wmpaint] and no results are found.
Could the underscore in tags automatically be changed into hyphens, just as when creating tags with underscores, so it leads to the wanted results?