$ git clone -n https://src.fedoraproject.org/rpms/udunits2.git /var/lib/mock/f31-build-77068-31473/root/thebuilddir/tmp/scmroot/udunits2
Cloning into '/var/lib/mock/f31-build-77068-31473/root/thebuilddir/tmp/scmroot/udunits2'...
$ git reset --hard 80fbe1babc7974977c50fb2a95638ed8454053cd
HEAD is now at 80fbe1b - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild