Author: alexsm333
Description:
See URL above:...&apprefix=Test_ with underscore (could be %20 or +) at the end.
Result: "Test", "Test-Driven", ... (last space is ignored).
Expected: "Test (Unix)", "Test Drive", ...
Looks like the prefix is normalized as if it was a real title, thus loosing extra spaces. Note that [[Special:PrefixIndex]] has the same problem.
Version: 1.13.x
Severity: normal
URL: http://en.wikipedia.org/w/api.php?action=query&list=allpages&apprefix=Test_