Grails: incorrect resolve variable 'it' in GSP

In following GSP all references should be resolve.

<% def it = new Object(); %>
<g:each in="['a', 'b', 'c']">
${it.substring(1)}
<g:findAll in="[1, 2,3,4,5]" expr="it.byteValue() == 0" />
</g:each>

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*Imported from [IDEA-60911](https://youtrack.jetbrains.com/issue/IDEA-60911) · Type: Bug · Votes: 0*
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Start by reproducing the shown GSP example in the Grails IntelliJ plugin and trace how GSP references are resolved inside the nested g:each and g:findAll tags. Done means all references to the local it variable resolve correctly, including it.substring(1) and it.byteValue().

Written by the indexing model from the issue text.