Dangling alias of Union[int, float] on signals page

[laurensvalk]

The selected alias at the bottom seems to come out of nowhere.

The usual :annotation: does not seem to suppress it.

[dlech]

It's not a bug, it s feature. 😆

Type aliases are a thing in Python, and apparently Sphinx has added special handling for this (this on is implicit rather than explicit).

[laurensvalk]

I know, but normally :annotation: suppresses the auto generated annotations. We use it in a few places to suppress excessive info.

[laurensvalk]

But since it isn't factually incorrect, I don't mind leaving it in for this release.

We can have a look at it the next time we dig into Sphinx to fix e.g #117