The last installer activity will always take over file associations.
Normally you want to follow strict version order. The beta disrupts chronology a bit - they're both version 24.
You should probably be fine reinstalling the public version, and it should then take over file associations. When the time comes to uninstall, start with the one holding file associations, and then work backwards. Then reinstall whatever you want to keep.
Having a beta installed is always a bit risky, and the ri
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