Imported pages with links to pages containing spaces import with underscore instead

Maybe related to MEDIAWIKI-25, but links to pages containing spaces import with underscores in place of spaces unless the link display text has been renamed.

For example in the test.xml there are 2 pages (test, test link).  

[[Test Link]]  imports as "Test_Link" ::  [[Main.Test_Link]]

[[Test Link|Test Link]] imports as "Test Link"  ::  [[Test Link>>Main.Test_Link]] 

Is is possible to just import any link not specifying alternative display text to include it matching the page name which would allow it to import with spaces but not break the link when the whitespace is converted to _.