In revision c41f2c6a60 ("moved all sanitization logic into backup class
and moved from regex to using internal Uri library"), we cleaned up the
removal of passwords from an exported backup configuration. However,
the use of Uri.QueryParameters resulted in exporting decoded parameter
values, which violated some assumptions made by the decode_uri function
in AppUtils.js. This caused usernames in the JSON to contain '@'
instead of '%40', which led to incorrect decomposition of the target URL
into its components in the UI.
This concerns issue #3619.
Kenneth Hsu
d4d7874aaf