With texinfo 7.0.2 (which comes with Fedora 38), I get warnings like:
|warning: @ref node name should not contain `:' |
The offending ref is “@ref{ext:encapsulate}”, and corresponding anchor
is “ext:encapsulate”. I didn’t see anything in the manual about this
constraint, but I didn’t look too hard. However, if there shouldn’t be a
colon in a @ref, shouldn’t there a corresponding warning if an anchor
contains a colon too?
In the particular manual, there are lots of anchors that contain colons
but most of them are not referenced via @ref. (For whatever reason.)
