$ oq engine --eo 846 out --exports xml
INFO:root:Reading 27316 ruptures from the datastore
Traceback (most recent call last):
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/engine/export/core.py", line 65, in export_from_db
    exported = export(output_key, dstore)
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/baselib/general.py", line 546, in __call__
    return self[key](obj, *args, **kw)
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/calculators/export/hazard.py", line 74, in export_ruptures_xml
    writer.serialize(ruptures_by_grp, oq.investigation_time)
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/commonlib/hazard_writers.py", line 506, in serialize
    rupture_to_element(rupture, sg)
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/commonlib/hazard_writers.py", line 376, in rupture_to_element
    for offset in range(len(rup.lons) / 4):
TypeError: 'float' object cannot be interpreted as an integer

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/mpagani/Repos/venv/bin/oq", line 11, in <module>
    load_entry_point('openquake.engine', 'console_scripts', 'oq')()
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/commands/__main__.py", line 48, in oq
    parser.callfunc()
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/baselib/sap.py", line 183, in callfunc
    return self.func(**vars(namespace))
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/baselib/sap.py", line 242, in main
    return func(**kw)
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/commands/engine.py", line 212, in engine
    exports or 'csv,xml'):
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/engine/export/core.py", line 139, in export_output
    the_file = export_from_db(outkey, calc_id, datadir, target_dir)
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/engine/export/core.py", line 72, in export_from_db
    (output_key + (version, tb_str, err)))
openquake.engine.export.core.DataStoreExportError: Could not export ruptures in xml
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/engine/export/core.py", line 65, in export_from_db
    exported = export(output_key, dstore)
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/baselib/general.py", line 546, in __call__
    return self[key](obj, *args, **kw)
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/calculators/export/hazard.py", line 74, in export_ruptures_xml
    writer.serialize(ruptures_by_grp, oq.investigation_time)
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/commonlib/hazard_writers.py", line 506, in serialize
    rupture_to_element(rupture, sg)
  File "/Users/mpagani/Repos/venv/src/oq-engine/openquake/commonlib/hazard_writers.py", line 376, in rupture_to_element
    for offset in range(len(rup.lons) / 4):
'float' object cannot be interpreted as an integer