I can enable auto-restart with --restart=always, but after I stop the container, how do I turn off that attribute?

I normally run a webserver and typically map port 80:

docker run -d --restart=always -p 80:80 -i -t myuser/myproj /bin/bash

But there are times when I want to run a newer version of my image, but I want to keep the old container around. The problem is that if there are multiple containers with --restart=always, only one of them (random?) starts because they’re all contending for port 80 on the host.

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