$ git clone -n https://src.fedoraproject.org/rpms/shaderc.git /var/lib/mock/f33-build-407208-62693/root/chroot_tmpdir/scmroot/shaderc
Cloning into '/var/lib/mock/f33-build-407208-62693/root/chroot_tmpdir/scmroot/shaderc'...
$ git reset --hard 8ad38eb6506ecdaf552daa9a39e58f26cceb8463
HEAD is now at 8ad38eb Update to 2020.4 Close: rhbz#1906260