When importing multiple branches from base ClearCase, how does it handle the following situation?

A new file is added to let's say the main branch. Then later the same file is merged in ClearCase to a second rel2 branch that was branched prior to the original file creation. The file is then imported into an RTC stream from the main branch. Then the importer is used to import the version of the file from the rel2 branch into a the same component on second stream.

I know that RTC handles directory versioning differently than ClearCase. The directory children know their parent as opposed to the parent directory cataloging the children. Is RTC able to resolve the second import without creating an evil twin?