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From: Chet Ramey <chet.ramey@case.edu>
Newsgroups: gnu.bash.bug
Subject: Re: trap RETURN not set in calling function is overwritten by callee
Date: Fri, 21 Aug 2015 08:34:55 -0400
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On 8/19/15 2:48 AM, jtmoon+bashbug@extrahop.com wrote:

> Fix:
> 	For some reason the RETURN traps are not being stacked.  Instead, the
> 	current RETURN trap is just overwritten.

There is only a single RETURN trap.  Functions do not have local traps.  If
a return trap is set when a function returns, it will be executed.  Nor are
there local functions; all functions are at the global scope.

Function tracing mode (for the debugger) changes this somewhat, but you're
not using it.
-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
		 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/