Yes, I think this fixes a lot of things that have been reported recently. By disabling selection persistence in multi-folder views such as unified folders, this also fixes bug 1857766. This functionality should be implemented in another patch soon.
Bug 1807063 Comment 24 Edit History
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Yes, I think this fixes a lot of things that have been reported recently. By disabling selection persistence in multi-folder views such as unified folders, this also mitigates the problem of selecting the wrong messages as reported in bug 1857766. This functionality should be implemented in another patch soon.