Unset array doesn't work

[Nikolai Kondrashov]

Hi everyone,

I think I'm hitting a bug in Bash 4.4.12 (on Debian Stable): at some point
an "unset" of a global array variable doesn't work inside a function, in
"dkms" script from DKMS package. Adding another "unset" of the same variable
next to it fixes the issue.

Does this sound familiar to anybody, something which was fixed recently,
perhaps? If not, I'll try to make a reproducer, but might not have time for
it, since "dkms" is complicated. If anybody is interested, I can give remote
access to the VM where this reproduces, and reproduction instructions.

Nick