[Asterisk-Dev] More AEL funnies

[Kevin P. Fleming]

Brian Capouch wrote:

> 4. Set(temp=$[ ${DB(CFIM/${ext})} ])          [pbx_ael]

OK, so this is a bug in the expression handler then, not AEL. It is not 
able to handle a completely empty expression, and that's not a 
construction that would normally appear in a dialplan unless AEL creates it.

In this case, the $[] brackets are completely unnecessary, and they are 
causing a problem.