Fix Czech Railways extractor to handle multi-leg group tickets properly

Authored by dvratil on Aug 2 2019, 3:55 PM.

Description

Fix Czech Railways extractor to handle multi-leg group tickets properly

Summary:
A group ticket contains some additional "Ref" lines in the trip outline,
which confused the extractor as it tried to parse them as station names.

Reviewers: vkrause

Reviewed By: vkrause

Subscribers: kde-pim

Tags: KDE PIM

Differential Revision: https://phabricator.kde.org/D22895