$ git clone -n https://src.fedoraproject.org/rpms/perl-CDDB_get.git /var/lib/mock/f45-build-21908-588/root/chroot_tmpdir/scmroot/perl-CDDB_get
Cloning into '/var/lib/mock/f45-build-21908-588/root/chroot_tmpdir/scmroot/perl-CDDB_get'...
$ git fetch origin ffe3ead8a284080e158cb7daddd2fcf4565bd4ea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-CDDB_get
 * [new ref]         ffe3ead8a284080e158cb7daddd2fcf4565bd4ea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ffe3ead Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild