Fix Product convert domain for non relate

This Patch has fixed search domain conversion which converts domain like
 [('template.category', '=', 1)] to [('template', '=', 1)].

 issue3118
 review1056003
(transplanted from ef13861cf9508a8eaed14f977e5dc412a98c5db4)

--HG--
extra : transplant_source : %EF%13%86%1C%F9P%8A%8E%AE%D1O%97%7E%5D%C4%12%A9%8C%5D%B4
Fix domain concatenation between list and tuple

issue3386
review1099002
(transplanted from d71945b5d54e9b61115ccb8c602958e9c78b0dbc)

--HG--
extra : transplant_source : %D7%19E%B5%D5N%9Ba%11%5C%CB%8C%60%29X%E9%C7%8B%0D%BC