When the sidebar is pinned open and I’m entering a tag in a card within the current space, the sidebar ends up capturing my Arrow Down + Enter at the same time, so instead of selecting the Tag I have highlighted with Enter, I end up navigating to the first linked space in the Links section of the sidebar.
This occurs even if the sidebar is on Tags. You won’t notice the Arrow Down since it’s happening in the Links section, but will still navigate you to the linked space.