[Potlatch-dev] [OpenStreetMap] #3901: Undo gets blocked after joining two different ways

[OpenStreetMap]

#3901: Undo gets blocked after joining two different ways
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 Reporter:  Pepou      |       Owner:  potlatch-dev@…                
     Type:  defect     |      Status:  new                           
 Priority:  minor      |   Milestone:                                
Component:  potlatch2  |     Version:  2.0                           
 Keywords:  Undo       |  
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 When two different ways (waterway=river+stream, highway=path+tertiary,
 etc.) are joined, the new joint way gets a warning triangle exclamation
 sign about tag's incorrect value (e.g. "tertiary; path __/!\__").

 After pressing Undo, the joint way gets one of these values (e.g.
 highway=path). After pressing Undo once more, the tag's value gets back to
 "path; tertiary" again and there is no way out for both Undo and Redo -
 infinite loop.

 (p2.2-11.g8f86250)

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Ticket URL: <https://trac.openstreetmap.org/ticket/3901>
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