Coworker complains about tech support worker getting credit for their unfinished jobs, forced to finish them himself: 'So now, he’s doing twice, sometimes 3 times the work, all because he wanted full credit for partial results'

Giving full credit for something to the person who "finishes" it is generally a poor idea, as it completely discounts other contributors' efforts. You see this with things like sales where the person to "finalize" the deal gets credit for the sale against their figures, regardless of whether or not they were the one to work on it originally. Really, absolute policies might be easy and cut and clean, but they create nightmares down the line whenever there are situations that aren't as black and white as the policy would like them to be.

This tech support worker faced a similar thing when their management announced a change to the company's procedures: an absolute change declaring that the person who resolved the client's issue would be the one who received full credit for the ticket. Still, when one of their coworker's clients called during their lunch break, and they put the finishing touches on their work, they noted their coworker's contributions regardless. The coworker took offense, feeling slighted despite their attempts to share credit however they could. This led to another policy change, where now the initial person who took the call would get the credit, regardless of who finished it, forcing that same coworker to go back and finish support tickets that they had left unattended.