Sometimes I use my own code as a library in another project, and I Attach Sources to the library. Then sometimes I use Ctrl+Click to navigate from my outer project to the library source, and make a change to the code.
There is a problem: those changes to external library source never show up in my project, since they are not part of the build for the current project.
I understand that this is my own error, not IDEA's, but I think IDEA should warn you, or prevent you from editing library source.
I filed this as an RFE a while ago http://intellij.net/tracker/idea/viewSCR?publicId=30046 and it was marked as To Be Discussed, and it still is. People had different opinions so I thought I'd post here.
I wonder what people would think of a warning message, or a different icon in the tab bar, or a different source background color, for library source code.
So, what does everyone think?