$ git clone -n https://src.fedoraproject.org/rpms/shaderc.git /var/lib/mock/f33-build-142205-42388/root/chroot_tmpdir/scmroot/shaderc
Cloning into '/var/lib/mock/f33-build-142205-42388/root/chroot_tmpdir/scmroot/shaderc'...
$ git reset --hard 9eed86af39ce9f2222e4f1200393167a331973a0
HEAD is now at 9eed86a Update to 2019.1