[R-SIG-Mac] GUI bug

[Michael Margolis]

The following message has been generated when I uncollapse a function in the GUI editor (that is, click the little triangle next to to a line number where I have previously hidden the function contents). This started when I upgraded to 3.3.0. It is sporadic, and has not yet been associated with any real problem.

2016-05-20 07:59:37.369 R[4066:3108487] *** RController: caught ObjC exception while processing system events. Update to the latest GUI version and consider reporting this properly (see FAQ) if it persists and is not known. 
*** reason: *** -[__NSArrayM objectAtIndex:]: index 18446744073709551615 beyond bounds [0 .. 205]
*** name: NSRangeException, info: (null)
*** Version: R 3.3.0 (70573) R.app R 3.3.0 GUI 1.68 Mavericks build
Consider saving your work soon in case this develops into a problem.