$ git clone -n https://src.fedoraproject.org/rpms/perl-HTML-TreeBuilder-XPath.git /var/lib/mock/f45-build-23963-601/root/chroot_tmpdir/scmroot/perl-HTML-TreeBuilder-XPath
Cloning into '/var/lib/mock/f45-build-23963-601/root/chroot_tmpdir/scmroot/perl-HTML-TreeBuilder-XPath'...
$ git fetch origin e1f65882b373c0b72d6b82dbe097c0bec1f6420c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTML-TreeBuilder-XPath
 * [new ref]         e1f65882b373c0b72d6b82dbe097c0bec1f6420c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1f6588 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild