$ git clone -n https://src.fedoraproject.org/rpms/tcalc.git /var/lib/mock/f31-build-74668-31166/root/thebuilddir/tmp/scmroot/tcalc
Cloning into '/var/lib/mock/f31-build-74668-31166/root/thebuilddir/tmp/scmroot/tcalc'...
$ git reset --hard 94c7b7c604e6e8ab424e8441c3991a5045221fb8
HEAD is now at 94c7b7c - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild