$ git clone -n https://src.fedoraproject.org/rpms/perl-XML-TreeBuilder.git /var/lib/mock/f39-build-1441401-32385/root/chroot_tmpdir/scmroot/perl-XML-TreeBuilder
Cloning into '/var/lib/mock/f39-build-1441401-32385/root/chroot_tmpdir/scmroot/perl-XML-TreeBuilder'...
$ git fetch origin 50acbe99c06479b68cecedded204c849158a45a1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-XML-TreeBuilder
 * [new ref]         50acbe99c06479b68cecedded204c849158a45a1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50acbe9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild