Fix Reference widget when no model is selected, value is just text

issue3352
review1090002
(transplanted from 5b7b2c1ba521565cb9e052c33f980a28589a47de)

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extra : transplant_source : %5B%7B%2C%1B%A5%21V%5C%B9%E0R%C3%3F%98%0A%28X%9AG%DE
Don't extend domain but wrap into a new list

review1106002
(transplanted from e4a2d43ad02e5c5d3ddd4c22a3c2a0890afff0aa)

--HG--
extra : transplant_source : %E4%A2%D4%3A%D0.%5C%5D%3D%DDL%22%A3%C2%A0%89%0A%FF%F0%AA
Fix move_into when record is not saved

review1107002
(transplanted from d4d4ec2782007eab231325592e4885da76ce1381)

--HG--
extra : transplant_source : %D4%D4%EC%27%82%00%7E%AB%23%13%25Y.H%85%DAv%CE%13%81