$ git clone -n https://src.fedoraproject.org/rpms/lldb.git /var/lib/mock/f38-build-side-42-init-devel-669082-26657/root/chroot_tmpdir/scmroot/lldb
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-669082-26657/root/chroot_tmpdir/scmroot/lldb'...
$ git fetch origin 61273cb67c19ca35884123fd9e7b44d3e2210760:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lldb
 * [new ref]         61273cb67c19ca35884123fd9e7b44d3e2210760 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 61273cb Update to LLVM 16.0.0