$ git clone -n https://git.centos.org/rpms/mesa /var/lib/mock/dist-c8-stream-build-67479-19036/root/chroot_tmpdir/scmroot/mesa
Cloning into '/var/lib/mock/dist-c8-stream-build-67479-19036/root/chroot_tmpdir/scmroot/mesa'...
$ git reset --hard imports/c8s/mesa-20.3.3-2.el8
HEAD is now at 46dbdfc import mesa-20.3.3-2.el8