Install incoming version command in Merge window causes DNU

[pavel-krivanek]

The context menu Install incoming version in the context menu on conflicting method in the Merge window causes DNU: Instance of IceMethodDefinition did not understand #load

How to reproduce

• create a package with one class and one method, then create a repository where you have two branches with conflicting methods
• merge one branch into other
• the Merge window is opened, the conflicting method is shown in red
• with RMB, open the context menu
• select Install incoming version
• DNU: Instance of IceMethodDefinition did not understand #load

[pavel-krivanek]