$ git clone -n https://src.fedoraproject.org/rpms/perl-App-a2p.git /var/lib/mock/f45-build-21716-587/root/chroot_tmpdir/scmroot/perl-App-a2p
Cloning into '/var/lib/mock/f45-build-21716-587/root/chroot_tmpdir/scmroot/perl-App-a2p'...
$ git fetch origin 7afb38465bf49362ea1af0519110daa201cb24f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-App-a2p
 * [new ref]         7afb38465bf49362ea1af0519110daa201cb24f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7afb384 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild