$ git clone -n https://src.fedoraproject.org/rpms/xmvn.git /var/lib/mock/f39-build-1568402-37636/root/chroot_tmpdir/scmroot/xmvn
Cloning into '/var/lib/mock/f39-build-1568402-37636/root/chroot_tmpdir/scmroot/xmvn'...
$ git fetch origin ab38bccdf41625aad3eaa9efedec9170f5581b67:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xmvn
 * [new ref]         ab38bccdf41625aad3eaa9efedec9170f5581b67 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ab38bcc Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild