Trailing tab in .git/config file breaks prefix parsing.

[IDisposable]

If there's a trailing blank / tab in the config file for on the [gitflow "prefix"] then the next line in the section (typically the release = release/ line) will be incorrectly ignored/missed and gitflow will complain that the prefix is not set.

This is an invalid setup in the file, but seems fragile to whitespace.

[petervanderdoes]

Do you mean a trailing space/tab after [gitflow "prefix"]

I can't reproduce it here locally.

What system are you running?
Which version of git?