$ git clone -n https://src.fedoraproject.org/rpms/gencolormap.git /var/lib/mock/f45-build-9726-408/root/chroot_tmpdir/scmroot/gencolormap
Cloning into '/var/lib/mock/f45-build-9726-408/root/chroot_tmpdir/scmroot/gencolormap'...
$ git fetch origin 01424cd9af1cc7d969fe472b4728f8f3bcdb28f7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gencolormap
 * [new ref]         01424cd9af1cc7d969fe472b4728f8f3bcdb28f7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 01424cd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild