Hi!

I have just upgraded a umbraco site from 7.1.3 to 7.5.11.

This project uses a quite special setup. it has gotten 20-ish domains connected to it, one domain for each region the company operates in. Every domain has an own home node in umbraco. Like this:

-- Home

---- Region 1 (www.region1.se)

---- Region 2 (www.region2.se)

---- Region 3 (www.region3.se)

I have written custom UrlProviders and content finders to deal with this, stripping away the "regionX" (and other folder-nodes that are only there for improved structure) so the url

www.region1.se/region1/folder/page

becomes

www.region1.se/page

This has been working good in 7.1.3.

However, now in 7.5.11, i get this message in the "link to document" field in backoffice: "This document is published but its url would collide with content [path/to/content]"

Some nodes aren't even accessible in the backoffice. They throw this error:

An error occured

 Mapping types:
 Content -> String[]
 Umbraco.Core.Models.Content -> System.String[]

 Destination path:
 ContentItemDisplay.Urls.Urls

 Source value:
 Umbraco.Core.Models.Content

EXCEPTION DETAILS

AutoMapper.AutoMapperMappingException: 

 Mapping types:
 Content -> String[]
 Umbraco.Core.Models.Content -> System.String[]

 Destination path:
 ContentItemDisplay.Urls.Urls

 Source value:
 Umbraco.Core.Models.Content

Worth noting is that the frontend is working as expected. no problems there.

Is there any way of solving this issue? or a better way of routing different domains to different home nodes?