$ git clone -n https://src.fedoraproject.org/rpms/alleyoop.git /var/lib/mock/f31-build-74876-31195/root/thebuilddir/tmp/scmroot/alleyoop
Cloning into '/var/lib/mock/f31-build-74876-31195/root/thebuilddir/tmp/scmroot/alleyoop'...
$ git reset --hard 4b2fd64eff18e5c0558829228e85c7c5e70d5ec0
HEAD is now at 4b2fd64 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild