$ git clone -n https://src.fedoraproject.org/rpms/perl-Alien-Libxml2.git /var/lib/mock/f39-build-1754355-41470/root/chroot_tmpdir/scmroot/perl-Alien-Libxml2
Cloning into '/var/lib/mock/f39-build-1754355-41470/root/chroot_tmpdir/scmroot/perl-Alien-Libxml2'...
$ git fetch origin 3676b82d9ce74dcc8b987f9544dcdacc30987fb7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Alien-Libxml2
 * [new ref]         3676b82d9ce74dcc8b987f9544dcdacc30987fb7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3676b82 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild