tree a41fc5725ff1a91b414138e31657ddbb6411bf37
parent adf9bddd73869084a505fac83246e55c35880079
author David 'Digit' Turner <digit@google.com> 1681724684 +0200
committer David 'Digit' Turner <digit+github@google.com> 1682613239 +0200

Allow duplicate rule variable usage.

This fixes #1966 by removing the variable name from the
lookups stack once the recursive lookup call has been performed.
Without this, any previously expanded variable could no longer
be referenced in the command, as Ninja would (incorrectly)
complain about a cyclical dependency.