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Side A makes a real code change with a behavioral fix (each unranked sibling gets its own nav group instead of being lumped together) plus a new test verifying the behavior, providing lasting functional value. Side B only appends a one-line note to a personal notes file, which is not functional code or documentation of lasting project value.

A changes real product behavior: unranked siblings become separate nav groups (with doc update and a regression test), lasting UI/structure value. B only appends one personal TODO line to notes.tdsl with no code, tests, or user-facing effect.

Side A changes application behavior by altering sibling navigation so each unranked sibling becomes its own navigation group instead of all unranked siblings being lumped together, updates the documentation to match, and adds a regression test verifying the new grouping. Side B only appends a brief project note ('new public thread form needs fewer words') to a notes file without affecting the code or behavior.

Side B is an actual code change that fixes a real bug (the disabled attribute was likely being rendered even when false, incorrectly disabling the button); this is a concrete, functional fix to UI code. Side A is merely a note added to a text file (notes.tdsl) with no code or behavioral change, contributing no lasting value beyond a to-do reminder.

B makes a real UI code change in fetch_entity_panel: conditional button markup so disabled is only present while fetching, fixing attribute handling. A only appends one line of personal backlog text to notes.tdsl with no functional impact.

Side B makes a functional template change by rendering separate enabled and disabled submit buttons instead of conditionally setting a disabled attribute, affecting the fetch entity UI behavior. Side A only appends a development note to notes.tdsl ('new public thread form needs fewer words') and does not change project functionality.