appcelerator/titanium_mobile — pull request #2244 by pingwang2011 (2012-05-22 17:19:44+00:00)
Title: Timob 8956: Android: When a view backgroundColor is set to transparent, setting the border width and color fills in the whole view with the border color.

https://jira.appcelerator.org/browse/TIMOB-8956
Test case in my comment on JIRA.