$ git clone -n https://src.fedoraproject.org/rpms/gthumb.git /var/lib/mock/f31-build-85709-31620/root/chroot_tmpdir/scmroot/gthumb
Cloning into '/var/lib/mock/f31-build-85709-31620/root/chroot_tmpdir/scmroot/gthumb'...
$ git reset --hard bc741ca90fdf97eb5357dea4b32e8a77835b4a49
HEAD is now at bc741ca - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild