[Qt-interest] Problem using URL with special characters

[Mandeep Sandhu]

> https://predict-hd.net/xnat/REST/projects/FMRI_HD_024/subjects/0252/experiments/45602/scans/2?xnat:mrScanData/parameters/addParam%5Bname%253DReviewed%5D/addfield=Yes
>
> In particular it's replacing my square brackets, and garbling the %3D
> (encoded '=')

As Thiago pointed out, you are probably passing QUrl an encoded
string. So it's applying percent encoding again over it.

To fix this, you either pass QUrl an unencoded string (if thats
possible) or use the QUrl API's that expect encoded strings as input
(so QUrl won't re-encode them again).

See the setEncoded* API's (apart from QUrl::fromEncoded).

HTH,
-mandeep