$ git clone -n https://src.fedoraproject.org/rpms/golang-tinygo-x-llvm.git /var/lib/mock/f38-build-side-43-rust-devel-1424041-31487/root/chroot_tmpdir/scmroot/golang-tinygo-x-llvm
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1424041-31487/root/chroot_tmpdir/scmroot/golang-tinygo-x-llvm'...
$ git fetch origin 86fbc049fa7f866698926951107be9ac2331b5e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-tinygo-x-llvm
 * [new ref]         86fbc049fa7f866698926951107be9ac2331b5e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 86fbc04 Support LLVM 16