When editing an Assistant query with an attached file, the file doesn't remain attached in the edited query. See the below screen recordings. Interestingly, it seems that 4o hallucinated in its second response, and R1 hallucinated in both responses. The document is a blank PDF for reference. To note: I haven't tested this on mobile.
Claude 3.7 Sonnet with extended thinking
Ki
4o
R1
Desired functionality is pretty clear — the file (or files) should remain attached.
