Fix extracting seat reservation from Czech Railways group ticket

Authored by dvratil on Aug 2 2019, 3:56 PM.

Description

Fix extracting seat reservation from Czech Railways group ticket

Summary:
Don't assume seat number is a single number, handle multiple numbers
as well as a range of seats.

Reviewers: vkrause

Reviewed By: vkrause

Subscribers: kde-pim

Tags: KDE PIM

Differential Revision: https://phabricator.kde.org/D22898