$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Able.git /var/lib/mock/f45-build-26561-618/root/chroot_tmpdir/scmroot/perl-Test-Able
Cloning into '/var/lib/mock/f45-build-26561-618/root/chroot_tmpdir/scmroot/perl-Test-Able'...
$ git fetch origin 795ec9b8d561a36a20ee5f648a6c15f14e45e115:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Able
 * [new ref]         795ec9b8d561a36a20ee5f648a6c15f14e45e115 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 795ec9b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild