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For information on where the post-function needs to be placed on a transition, see Placing of post-functions in a transition in MWEC.
When you add this post-function to a transition and trigger the transition, the add-on will trigger the specified transition on each issue linked to the current issue through the selected link type, assuming that transition is valid for the linked issue's current status, and it is available to the current or the specified user.
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