$ git clone -n https://src.fedoraproject.org/rpms/gnome-kra-ora-thumbnailer.git /var/lib/mock/f31-build-65102-29635/root/thebuilddir/tmp/scmroot/gnome-kra-ora-thumbnailer
Cloning into '/var/lib/mock/f31-build-65102-29635/root/thebuilddir/tmp/scmroot/gnome-kra-ora-thumbnailer'...
$ git reset --hard 1c7a55d4bbbe24d33cb1798336c816a2e9f78692
HEAD is now at 1c7a55d - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild