$ git clone -n https://src.fedoraproject.org/rpms/htmldoc.git /var/lib/mock/f29-build-2640-768/root/thebuilddir/tmp/scmroot/htmldoc
Cloning into '/var/lib/mock/f29-build-2640-768/root/thebuilddir/tmp/scmroot/htmldoc'...
$ git reset --hard 656e96ec8ff503568048b0fd5985981699decb62
HEAD is now at 656e96e BR: gcc-c++