Not able to create more stops or remove existing one in new tripPattern

[j05u3]

My fellow at work detected one issue:

1. Create new trip pattern (not from transitWand)
2. Change its type to use frequency
3. Create a new trip (schedule)
4. Add 1 stopTime to the pattern

The next stop can't be added. (although UI shows as added, but badRequest is happening)
The current stop can't be removed.

Digging into the code I came across with a line that mentioned #174

It happens that it was creating an inconsistent state in the database in which the first stop wasn't being added to the trip just created.

[j05u3]

I believe that line was added only to be able to insert multiple stops at once into a pattern, so I suggest doing this sync: #260