[Koha] opac search

[Erlanda Simonyan]

Dear list, 
We have some problems in  opac search  in koha 17.05. 
When we search for a keyword and from the result page and the column of "refine 
your search" we clikck on any author's name that contains a hyphen,  for 
example 
  a.. ???-???????????, ??????? , we get no result . See photos attached.
  b.. Thanks 
  a.. 
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