weird station IDs

[derhuerst]

curl -s 'https://vbb-gtfs.jannisr.de/latest/stops.txt' | grep '^M'

M000008010088,"","Dresden-Klotzsche",,"51.114667000000","13.789110000000",1,
M000008000058,"","Büchen",,"53.474972000000","10.623298000000",1,
M000008003774,"","Lübeck St Jürgen",,"53.842321000000","10.702942000000",1,

IDs beginning with M might break lots of things, because

• their IDs are longer than usual and some libs have no other choice than taking the ID length as a heuristic
• usually IDs have numeric digits only

[derhuerst]

In public-transport/vbb-hafas@43355d7, i have set up logging to check if the API returns ^M station IDs.