$ git clone -n https://src.fedoraproject.org/rpms/perl-PostScript.git /var/lib/mock/f45-build-25917-613/root/chroot_tmpdir/scmroot/perl-PostScript
Cloning into '/var/lib/mock/f45-build-25917-613/root/chroot_tmpdir/scmroot/perl-PostScript'...
$ git fetch origin 480d8e9f8504545c35815d2464bab0a1692691b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-PostScript
 * [new ref]         480d8e9f8504545c35815d2464bab0a1692691b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 480d8e9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild