Since these aren't your patches, you will need to add a signoff on all the patches.
Ok - will do.
Just to state my agenda. I am working on fixing issues that are preventing Msys2 from working properly on Wine. Many of the problems have been partially addressed previously, and there's a lot of half finished work hanging around in staging, and patches in the bug tracker. I am attempting to collect all these pieces of work together, and figure out what needs to be done to get the patches included in the mainline.
It may well be the case that these patches have been reviewed long ago and were rejected. Hopefully these merge requests are a good opportunity to revisit these things and bring them to a conclusion.