$ git clone -n https://src.fedoraproject.org/rpms/libvarlink.git /var/lib/mock/f40-build-741319-110116/root/chroot_tmpdir/scmroot/libvarlink
Cloning into '/var/lib/mock/f40-build-741319-110116/root/chroot_tmpdir/scmroot/libvarlink'...
$ git fetch origin 3958a2e9a90718e62549358ff2d31efc94b24749:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libvarlink
 * [new ref]         3958a2e9a90718e62549358ff2d31efc94b24749 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3958a2e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild