$ git clone -n https://src.fedoraproject.org/rpms/clang9.0.git /var/lib/mock/f33-build-138175-42151/root/chroot_tmpdir/scmroot/clang9.0
Cloning into '/var/lib/mock/f33-build-138175-42151/root/chroot_tmpdir/scmroot/clang9.0'...
$ git reset --hard 8c6e44f29345c74f6159cc37355dffb952d1ab72
HEAD is now at 8c6e44f Update header install