[OpenStreetMap] #3127: make "too many items" warning in data layer optional

[OpenStreetMap]

#3127: make "too many items" warning in data layer optional
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 Reporter:  Cobra        |       Owner:  rails-dev@…                
     Type:  enhancement  |      Status:  new                        
 Priority:  minor        |   Milestone:  Wishlist                   
Component:  website      |     Version:                             
 Keywords:               |  
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Comment(by Richard):

 Hey Holger - it doesn't take very long at all. If you can send a github
 pull request with the problem fixed properly, I'm sure it'll be solved in
 no time. Thanks for your help! :)

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Ticket URL: <https://trac.openstreetmap.org/ticket/3127#comment:4>
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