[SSSD] [sssd PR#693][comment] SYSDB: Fall back to the MPG result of getgrgid search if the non-MPG search for override doesn't match anything

[mzidek-gh]

URL: https://github.com/SSSD/sssd/pull/693
Title: #693: SYSDB: Fall back to the MPG result of getgrgid search if the non-MPG search for override doesn't match anything

mzidek-gh commented:
"""
Btw. I do not think the original author of this PR will work on this anymore (feel free to correct me @jhrozek if I am wrong :) )

So I think a good way to approach this would be to:
1. create an issue to track this
2. close this PR and link it with the issue from 1
3. plan what to do with the issue from 1 (doc fix or patch or move to backlog)
"""

See the full comment at https://github.com/SSSD/sssd/pull/693#issuecomment-603105940