This bug is tracking the deprecation of <spring> and its replacement with <spacer>.
This has r=kerz and sr=ben on IRC.
microscopic nit: why is the deprecated element the first test, and the recommended element second?
john, because the XUL hasn't been switched over. until then the deprecated ones are placed first. :)
What? No syntax purges scheduled? ;)
May God have mercy on us all. The 212 bug spam-o-rama is Now!