GET_VAR does not resolve recursively

Document ID : KB000100032
Last Modified Date : 13/06/2018
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Introduction:
GET_VAR does not resolve recursively on v12.x and v11.x. From v9 SP4 to v10 SP4, GET_VAR resolves recursively. This means, if a value contains an "&", the script processor tries to resolve this. This has been changed. 
Example: 
Static variable 'MYVAR', Key = 1 Value = 'Schmidt&Partners'
Script 
:set &partners = 'no'
:set &value# = get_var('MYVAR','1')

The variable &value# will contain therefore: 
v9 SP4 to v10: Schmidtno 
v11 : Schmidt&Partners

With v10 SP4 HF1 the behavior was configurable (key RESOLVE_GET_VAR in UC_SYSTEM_SETTINGS).
Instructions:
In v11 the configuration option was removed. As a conclusion all variable values, that should be resolved recursively, must use the Script function RESOLVE_VAR.