Paths that contain the '@' character are silently skipped

[fseidl]

Sadly, the NextCloud client app stores its synchronized folders under accountname@servername/...
I believe the AT-sign is a valid character in file- and directory names on Android, so the place to report this is here.

Observed under LineageOS 14.1 (nightly 2017-05-04) / Android 7.1.2 on Motorola G3 (osprey).