$ git clone -n https://src.fedoraproject.org/rpms/gmic.git /var/lib/mock/f42-build-864653-172514/root/chroot_tmpdir/scmroot/gmic
Cloning into '/var/lib/mock/f42-build-864653-172514/root/chroot_tmpdir/scmroot/gmic'...
$ git fetch origin 6d96f77ed7b0bf1f376c16cab2fbec72c019b98b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gmic
 * [new ref]         6d96f77ed7b0bf1f376c16cab2fbec72c019b98b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d96f77 Rebuild for hdf5 1.14.5