UnicodeDecodeError if unicode characters are entered into the listing search field about senaite.core HOT 4 CLOSED

Traceback (innermost last):
  Module ZPublisher.Publish, line 138, in publish
  Module ZPublisher.mapply, line 77, in mapply
  Module ZPublisher.Publish, line 48, in call_object
  Module bika.lims.browser.client.views.analysisrequests, line 48, in __call__
  Module bika.lims.browser.analysisrequest.analysisrequests, line 1157, in __call__
  Module bika.lims.browser.bika_listing, line 934, in __call__
  Module bika.lims.browser.bika_listing, line 1376, in contents_table
  Module bika.lims.browser.bika_listing, line 1536, in __init__
  Module bika.lims.browser.analysisrequest.analysisrequests, line 844, in folderitems
  Module bika.lims.browser.bika_listing, line 1020, in folderitems
  Module bika.lims.browser.bika_listing, line 1156, in _fetch_brains
  Module Products.AdvancedQuery, line 88, in _evalAdvancedQuery
  Module Products.AdvancedQuery.eval, line 40, in eval
  Module Products.AdvancedQuery.eval, line 16, in _eval
  Module Products.AdvancedQuery.AdvancedQuery, line 220, in _eval
  Module Products.AdvancedQuery.AdvancedQuery, line 233, in _eval
  Module Products.AdvancedQuery.AdvancedQuery, line 84, in _eval
  Module Products.AdvancedQuery.AdvancedQuery, line 279, in _applyIndex
  Module Products.PluginIndexes.common.UnIndex, line 403, in _apply_index
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 0: ordinal not in range(128)