Steps to replicate the issue:
- Go to https://bn.m.wiktionary.org/wiki/%E0%A6%AC%E0%A6%BE%E0%A6%B2%E0%A6%BE%E0%A6%AE
- Click the edit icon beside "বাংলা"
The section is collapsed instead of opening the editor.
What should have happened instead?:
The editor should have been opened.
This only seems to be affecting sections that are generated with the use of templates that have titles starting (and ending) with a hyphen, in this specific case -bn-.