Requested edit at enwiki executed 03:11, 19 February 2023‎ UTC
This report: considered moot for enwiki (workaround)

Edit request made for the module at enwiki [https://en.wikipedia.org/wiki/Module_talk:DecodeEncode#Template-protected_edit_request_on_16_February_2023]. (THIN SPACE similar change)

Preventing multiple templatedata sections being transcluded is a good solution (good catch). I have adjusted the documentation set to prevent this in an other way (do not transclude a full /doc page in the navigationbox).

the stack:

Notes:

• Visual Editor not involved (edits are tried in classic WP edit box)
• When *not* logged in: test success (no bug).
• Issue also appears with non-protected pages (namespace template).

I am the editor who posted the original report (first link in Description).
I note that since the *edit*-link does not react, one could consider & test whether just opening the page (i.e., read instead of edit opening) would be acceptable, skipping the bug.

In T190813#4087624, @daniel wrote:

... Wikibase has code for unit conversion, along with conversion factors for several thousand units in the config. ...

Wikidata also has labels and symbols for units, but these are not yet integrated with the conversion system.

[reply tech flow; no content]: OK, I understand by now (sort of). New here. Thankx.

[tech note: I could not add a reply to IKhitron's relpy. That it ended up ~ok is not as predited]. (what the heck. Even in Preview mode, I cannot edit or change or whatever). -~~~~

In T190813#4087586, @IKhitron wrote:

Continuing @DePiep, you can use the translationwiki for multiple forms in different languages. For example, MediaWiki:Convertunits-length-longform/sl will be something like

$1 {{#switch:$1|1=meter|2=metra|3=metri|#default=metrov}}

Using wikicode and magic worgs as plural, you can change forms, order, remove spaces, and so on. So, you can leave to local users to translate, choosing the most fit form for any measure, long and abbreviated as well.

I think the title part "... unit conversions" is incorrect. What is converted is the "physical quantity value". By SI definition:

• physical quantity = number × unit

By intention and design, this formula may be used algebraically. The complete right-hand side is called "value": number part times unit part. (This is where the title could be improved: "quantity value conversion" ideally, or "value conversion"). For the same reason, proposed name "Module:Unit" is incomplete for this purpose. Maybe "Module:Physicalquantity"?
Notes:
Usually, there are separate but well-defined symbols for both the quantity and for the unit. (speed: ''v'', unit of speed: "m/s"). Omitting this distinction (lefthand, righthand) often is cause for misunderstanding a statement.