$ git clone -n https://src.fedoraproject.org/rpms/llvm12.git /var/lib/mock/f37-build-675661-76018/root/chroot_tmpdir/scmroot/llvm12
Cloning into '/var/lib/mock/f37-build-675661-76018/root/chroot_tmpdir/scmroot/llvm12'...
$ git reset --hard 06395879ff9f55714b7930077c0f2b2c33aa8abe
HEAD is now at 0639587 12.0.1 Release