The reason we suggest upgrading is because it’s extremely common that issues are already fixed or they cannot reproduce when we ask them to upgrade. It helps with issue triage so we can properly prioritize and fix issues.
If you can link the issue with a reproduction, I’m happy to look into it.
Generally, the expectation is that developers know what bugs have been fixed or can quickly check, so users aren't expected to just constantly retry on whatever today's HEAD is. That takes a lot of their time, and you already know what changes you're making so should be able to determine quickly if a bug was fixed.
If you can link the issue with a reproduction, I’m happy to look into it.