$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-corelg.git /var/lib/mock/f45-build-52114-907/root/chroot_tmpdir/scmroot/gap-pkg-corelg
Cloning into '/var/lib/mock/f45-build-52114-907/root/chroot_tmpdir/scmroot/gap-pkg-corelg'...
$ git fetch origin d2e64aab3a587fdc15f89cfa12dbfa18b4a175b1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-corelg
 * [new ref]         d2e64aab3a587fdc15f89cfa12dbfa18b4a175b1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d2e64aa Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild