'local -x VARIABLE' does not clear variable for subprocesses

[Arfrever Frehtes Taifersar Arahesis]

'local -x VARIABLE' (without assignment of value) does not clear variable for 
subprocesses.
It is regression in bash 4.3.

Behavior of 'local VARIABLE' without -x option also changed, but I am not sure 
what should be correct
behavior in that case.

bash 4.2.47:

$ export VAR1=abc VAR2=abc
$ f() { local VAR1; local -x VAR2; bash -c 'declare -p VAR{1,2}'; }
$ f
bash: line 0: declare: VAR1: not found
bash: line 0: declare: VAR2: not found

bash 4.3.11:

$ export VAR1=abc VAR2=abc
$ f() { local VAR1; local -x VAR2; bash -c 'declare -p VAR{1,2}'; }
$ f
declare -x VAR1="abc"
declare -x VAR2="abc"

--
Arfrever Frehtes Taifersar Arahesis

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