$ git clone -n https://src.fedoraproject.org/rpms/gdk-pixbuf2.git /var/lib/mock/f31-build-53399-27848/root/thebuilddir/tmp/scmroot/gdk-pixbuf2
Cloning into '/var/lib/mock/f31-build-53399-27848/root/thebuilddir/tmp/scmroot/gdk-pixbuf2'...
$ git reset --hard b4c83f95540672b6b968b9388dbb57f6d3455f06
HEAD is now at b4c83f9 Update to 2.38.1