$ git clone -n https://src.fedoraproject.org/rpms/lldb.git /var/lib/mock/f39-build-2398354-60541/root/chroot_tmpdir/scmroot/lldb
Cloning into '/var/lib/mock/f39-build-2398354-60541/root/chroot_tmpdir/scmroot/lldb'...
$ git fetch origin a4a9a8b9571aed61e4ff7b0b78957a642b602211:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lldb
 * [new ref]         a4a9a8b9571aed61e4ff7b0b78957a642b602211 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4a9a8b Update to LLVM 17.0.6