$ git clone -n https://src.fedoraproject.org/rpms/librcc.git /var/lib/mock/f31-build-59403-28580/root/thebuilddir/tmp/scmroot/librcc
Cloning into '/var/lib/mock/f31-build-59403-28580/root/thebuilddir/tmp/scmroot/librcc'...
$ git reset --hard 1d4ca2cdbb436abba75ff6819e0fe482f4d24e84
HEAD is now at 1d4ca2c - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild