$ git clone -n https://src.fedoraproject.org/rpms/R-biglm.git /var/lib/mock/f31-build-81294-31545/root/thebuilddir/tmp/scmroot/R-biglm
Cloning into '/var/lib/mock/f31-build-81294-31545/root/thebuilddir/tmp/scmroot/R-biglm'...
$ git reset --hard 226e4fb13557e92ac3619b5599b734d808f5c4fc
HEAD is now at 226e4fb - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild