$ git clone -n https://src.fedoraproject.org/rpms/perl-WWW-Bugzilla.git /var/lib/mock/f45-build-27365-622/root/chroot_tmpdir/scmroot/perl-WWW-Bugzilla
Cloning into '/var/lib/mock/f45-build-27365-622/root/chroot_tmpdir/scmroot/perl-WWW-Bugzilla'...
$ git fetch origin 73a04728659d36c28b9682ed88493eb1803b2e36:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-WWW-Bugzilla
 * [new ref]         73a04728659d36c28b9682ed88493eb1803b2e36 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 73a0472 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild