Semi-colon separator used to work for image properties, but doesn't in 3.2.1 which causes broken images on CAC

It seems as though one of the code changes in 3.2.1 has caused broken images on CAC.

!Groups.png|border=1;bordercolor=gray! 

See problem report from edawson:

I've had a few reports recently of broken screenshots in our CAC documentation: a red error message appears in place of previously functional screenshots saying the following:

"Size parameter must be a number (optionally followed by 'px', 'pt' or 'em')."

This occurs even if you aren't specifying a size parameter. You can see what the errror looks like here, and see the Wiki markup code that generates it.

http://confluence.atlassian.com/pages/viewpage.action?pageId=216957093

I fixed this particular instance of the problem by replacing a semi-colon with a comma in the screenshot properties:

"border=1;bordercolor=gray".

I suspect that this might be related to a recent Confluence code change as most of this content has been static (and functioning quite well) for some time. I have instances of the error in the JIRA Studio documentation (pages that haven't recently been edited) as well as FishEye space. It might be worth searching for usage of the image macro where semicolons are used instead of commas, and doing a general browse around for it for broken images.