bug#39972: 28.0.50; which-function no longer returning current Java method in Emacs 27

[Philipp Stephani]

Am Do., 21. Mai 2020 um 18:15 Uhr schrieb Eli Zaretskii <eliz@gnu.org>:
>
> > From: Philipp Stephani <p.stephani2@gmail.com>
> > Date: Thu, 21 May 2020 17:56:16 +0200
> > Cc: 39972@debbugs.gnu.org
> >
> > Do you think you could push these patches onto the release branch, as
> > this appears to be a regression?
>
> The fixes (especially the one for which-func) are too risky for the
> release branch.  Is it possible to come up with something simpler for
> emacs-27?  What change(s) caused the regression, exactly?

git bisect says the commit that broke this was
[0613e7a38efc3b0534e0ca5c5fa401e2a3bda906] which-function: Do not
display outdated imenu information