I just typed food into the search box at opendata and this gives me search results containing the word food. The search query is
[food] is a tag at opendata.
Same when searching for sleep at Productivity: the query is
But I recently noticed* at other SE sites that if you enter a word that is also a tag name, this initiates a search for the tags:
Search for 'delphi' at SO performs
Search for 'professionalism' at Workplace performs
Why this inconsistent behavior?
Or is this 'consistent' one way for beta sites and the other way for non-beta?
* At the time I considered this unwanted behaviour—if I want a tag, I'll search for [tag]—but that is another issue, partially adressed here.