rdmd renames directories if they share the same name as an output file, what to do?

[Gary Willoughby via Digitalmars-d]

In the following bug report it's highlighted that rdmd renames 
directories if they share the same name as the output file.

https://issues.dlang.org/show_bug.cgi?id=13758

Is there a consensus of opinion on what rdmd should do in this 
situation? i.e. should it raise an error and fail? Should there 
be a switch to enable this behaviour?

Personally I think it *should* fail and report the name clash. 
The switch should not implemented.