$ git clone -n https://src.fedoraproject.org/rpms/R-parsedate.git /var/lib/mock/f45-build-6288-347/root/chroot_tmpdir/scmroot/R-parsedate
Cloning into '/var/lib/mock/f45-build-6288-347/root/chroot_tmpdir/scmroot/R-parsedate'...
$ git fetch origin 12c5282278774a4186c2532dd9dd7ff1b5753514:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-parsedate
 * [new ref]         12c5282278774a4186c2532dd9dd7ff1b5753514 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 12c5282 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild