$ git clone -n https://src.fedoraproject.org/rpms/mesa.git /var/lib/mock/f41-build-854764-166955/root/chroot_tmpdir/scmroot/mesa
Cloning into '/var/lib/mock/f41-build-854764-166955/root/chroot_tmpdir/scmroot/mesa'...
$ git fetch origin b15cf54786b6233757b191898e02d1a95ec43b61:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mesa
 * [new ref]         b15cf54786b6233757b191898e02d1a95ec43b61 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b15cf54 Backport fix for LLVM 19 compatibility