I find that (in the latest nightly build, but I also experienced it earlier) the "in selection" button of the find panel sometimes behaves oddly. I managed to make this reproducible:
1. Open a new file.
2. Enter "test"
2. Open the Find panel (cmd+f, "in selection" button is deselected).
3. Search for "e" -> highlights the letter e
2. Select the whole word "test" and activate the "in selection" button (or press cmd+f, this will activate the button, too (correctly))
4. hit find again-> "unable to find "e" in selection"
Overall I would highly appreciate it if there were some visual indication what the "current selection" refers to. When you select a region, press cmd+f to find something in the region, each match will be highlighted as a selection (which is absolutely fine) but then the indication of the area that is being searched is gone.
This is sometimes especially weird when you just have been searching something within a selection and now want to search something different, and--by mistake--have the "in selection" box still activated, there is no visual clue that the text is only found in a certain region.
Any thoughts by other people?