$ git clone -n https://src.fedoraproject.org/rpms/gmic.git /var/lib/mock/f39-build-1719564-41229/root/chroot_tmpdir/scmroot/gmic
Cloning into '/var/lib/mock/f39-build-1719564-41229/root/chroot_tmpdir/scmroot/gmic'...
$ git fetch origin a7e77a6bd10546f8e2d530c3d517bd786d1703d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gmic
 * [new ref]         a7e77a6bd10546f8e2d530c3d517bd786d1703d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7e77a6 Rebuild for opencv 4.8.0