How can I make render layers merge when referencing?

[haakon]

I want to reference lights from one child file, and a character from another child file. Both child files have the same render layers with the same names, in fact the files are identical, except for that one is containing only the lights and the other is containing only the character. It seems to me that the help file claims render layers from referenced  files will be merged when loaded, just like the display layers, but that is not happening, even though I have render layers checked under 'shared reference options' when referencing. Any idea why? What can I do to make it happen?

[haakon]

I created a new empty file, created 2 new renderlayers and saved two identical files(emptychild1.mb and emptychild2.mb). Then I created another empty file and referenced the two files into that file, still the same problem, I end up with 4 renderlayers. Is something wrong with my maya settings?

[haakon]

I did some more research about referencing bugs, and solved the problem by doing these things:
1. Changing the render layer names from the standard names(layer1, layer2) into my own names(AO, BEAUTY)
2. Changing the render layer numbers from the standard numbers(3 and 4 instead of 1 and 2)
3. Changing the render layer and display layer file import preferences to "by number".
4. Saving both files as .ma files instead of .mb, without using numbers in the file names.
5. Referenced both the files with 'by number' checked for both display and render layers in the 'shared reference options'. 

Now it's working like a charm!

Sorry for talking to myself, just trying to help others with the same problem=)