$ git clone -n https://src.fedoraproject.org/rpms/mingw-libsigc++30.git /var/lib/mock/f41-build-side-1-2648158-27335/root/chroot_tmpdir/scmroot/mingw-libsigc++30
Cloning into '/var/lib/mock/f41-build-side-1-2648158-27335/root/chroot_tmpdir/scmroot/mingw-libsigc++30'...
$ git fetch origin 81481e87032bf47e1b8335330020bf846211a094:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-libsigc++30
 * [new ref]         81481e87032bf47e1b8335330020bf846211a094 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 81481e8 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild