Common aspects
Each dynamic variable is identified by a unique name. Dynamic variables do not have a separate namespace. After evaluation, dynamic variables are handled like a static IzPack variable defined in a <variables>
section. This means they are visible like any other IzPack variable for replacing placeholders or as default value for user input fields assigning a value to a variable.
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In addition, if the user goes back through the panel sequence by pressing Previous, they must reach the first panel containing the variable before it will be unfrozen.
This way there can be reset the default values according to new conditions when navigating back and forward multiple times in the installer wizard.
Global precedence for dynamic variable assignments
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