**Problem:**
The “overwrite” edit flow name does not accurately describe the currently implemented edit flow: it matches the “replace” edit decision (the old value is overwritten), but not the “update” one (the old value stays in place and a new one is added to the same statement group in order to amend it). [Terminology note: the “edit flow” is declared on the bridge link, whereas the “edit decision” is made by the user.] We want to change it before the first templates have to be adjusted, so that people don’t have to change the templates several times.
**Acceptance criteria:**
* The edit flow is instead named **single-best-value**.
* At this stage, we don’t need backwards compatibility. We don’t support “overwrite” at all anymore.
* Adjust all of our showcase pages to use the new edit flow name (including [test](https://en.wikipedia.beta.wmflabs.org/wiki/Data_bridge) and [showcase](https://en.wikipedia.beta.wmflabs.org/wiki/Wikidata_Bridge_Showcase)).
* Adjust documentation ([DocDraft](https://www.mediawiki.org/wiki/Wikidata_Bridge/Development/DocDrafts/How_to_Enable_Wikidata_Bridge_for_your_Infobox)).