$ git clone -n https://src.fedoraproject.org/rpms/gtk-sharp2.git /var/lib/mock/f39-build-1903128-42867/root/chroot_tmpdir/scmroot/gtk-sharp2
Cloning into '/var/lib/mock/f39-build-1903128-42867/root/chroot_tmpdir/scmroot/gtk-sharp2'...
$ git fetch origin 222380b6b6cc2b9e54a7739a9b0eaf80ff1770da:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gtk-sharp2
 * [new ref]         222380b6b6cc2b9e54a7739a9b0eaf80ff1770da -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 222380b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild