$ git clone -n https://src.fedoraproject.org/rpms/mingw-atk.git /var/lib/mock/f45-build-18388-515/root/chroot_tmpdir/scmroot/mingw-atk
Cloning into '/var/lib/mock/f45-build-18388-515/root/chroot_tmpdir/scmroot/mingw-atk'...
$ git fetch origin b3120ac7f31ec10ca91d2d98c045930bd26fc861:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-atk
 * [new ref]         b3120ac7f31ec10ca91d2d98c045930bd26fc861 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b3120ac Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild