For #5369 - Bug 1577479 - Fix push() call in old decision task

[JohanLorenzo]

The regression was introduced in #5011 because of a late merge conflict and an overlook of mine in the review.

Pull Request checklist

• Quality: This PR builds and passes detekt/ktlint checks (A pre-push hook is recommended)
• Tests: This PR includes thorough tests or an explanation of why it does not
• Screenshots: This PR includes screenshots or GIFs of the changes made or an explanation of why it does not
• Accessibility: The code in this PR follows accessibility best practices or does not include any user facing features

After merge

• Milestone: Make sure issues finished by this pull request are added to the milestone of the version currently in development.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@2b71af4). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #5373   +/-   ##
=========================================
  Coverage          ?   12.54%           
  Complexity        ?      258           
=========================================
  Files             ?      248           
  Lines             ?    10295           
  Branches          ?     1520           
=========================================
  Hits              ?     1292           
  Misses            ?     8914           
  Partials          ?       89

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