I'm getting `SIGBUS: Illegal storage access. (Attempt to read from nil?)` crashes using [godot-nim](https://github.com/pragmagic/godot-nim) with this version. I also saw this in 1.6.2 (but not 1.6.0 or earlier) and assumed it would be fixed by <https://github.com/nim-lang/Nim/pull/19385>, but either I'm seeing something else, or the fix is incomplete.
Unfortunately I won't have any time to dig into this for a few days, but on Thursday I'll try to come up with a minimal reproduction and track down the offending commit.
