Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (6814180) 94.38% compared to head (d8f7f59) 94.28%.
Report is 2 commits behind head on master.

@@            Coverage Diff             @@
##           master     #872      +/-   ##
==========================================
- Coverage   94.38%   94.28%   -0.11%     
==========================================
  Files          48       48              
  Lines        6665     6665              
==========================================
- Hits         6291     6284       -7     
- Misses        374      381       +7     

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I started an investigation ("blame" in the web pages of our code is even more powerful than I thought (for each line, we can have navigate its history)):
In #31 it was added and was actually fused.
Then the commit that is interesting us here is beaf395 (by bluss, he missed one comment in this "unfuse" commit that you found).

I started an investigation ("blame" in the web pages of our code is even more powerful than I thought (for each line, we can have navigate its history)): In #31 it was added and was actually fused. Then the commit that is interesting us here is beaf395 (by bluss, he missed one comment in this "unfuse" commit that you found).

I'm fine with either unfused or fused, but I'd vote for uniform behavior. Not sure if we have a general guideline regarding fusedness, though.

I'm fine with either unfused or fused, but I'd vote for uniform behavior. Not sure if we have a general guideline regarding fusedness, though.

I agree.
I think it would be great to have a clear guideline about fusedness. And maybe better tests about (un)fusedness. I'm not sure all the iterators behave correctly in that regard (and have correct documentation).
It's not very high on my TODO list though as I'd rather triage/complete old issues/PRs and work on fold specializations and maybe_/Try to eventually move to use const-generics.

I'm gonna make an issue about fusedness to see opened issues and PRs related to it, clarify the situation (like make a guideline) and eventually make a TODO list about all this.