Recent imports currently always show in an “all files” view mode, which is why both files of a RAW/JPEG pair are shown. While this isn’t technically a bug, it can indeed be unexpected.
Having a switch between “workspace” and “all files”, like in most other views would “fix” this. However, there is a rather stupid issue with this solution, namely that the paragraph captions in “Recent Imports” are relatively long and would more or less always get truncated if we’d add the drop-down list for changing the view mode. Maybe we can instead use something like a hybrid display mode, where non-workspace files are possibly half-transparent and moved to the back of each paragraph.