Tasks with no priority sort before prioritized tasks if they start with ASCII char before '('

[NightFlyer]

Do you want to request a feature or report a bug?
bug

What is the current behavior?
If you have a task that starts with an ASCII character before '(' (such as # or double quote),
that task will sort before any of the priority tasks. So, what you get are:

1. unprioritized tasks that start with an ASCII character before '('
2. prioritized tasks
3. unprioritized tasks that start ASCII character after '('

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem.
Use a todo.txt such as the following:

(A) high priority task
(B) medium priority task
"funny" task
Another task
(A) "funny" priority task

then do todo.sh ls will show:

3 "funny" task
5 (A) "funny" priority task
1 (A) high priority task
2 (B) medium priority task
4 Another task

What is the expected behavior?
The expected behavior is that all unprioritized tasks will sort after prioritized tasks.

5 (A) "funny" priority task
1 (A) high priority task
2 (B) medium priority task
3 "funny" task
4 Another task

Which versions todo.sh are you using?

Run todo.sh -V
TODO.TXT Command Line Interface v2.11.0

Which Operating System are you using?
MacOS 10.13.6

Which version of bash are you using?

Run bash --version
GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin17)

[the1ts]

This appears to be because of the LC_COLLATE=C in the default TODOTXT_SORT_COMMAND.
You can try setting this in your todo.cfg to remove it. Seems to ignore non-alphanumeric characters and allow the priority sorting.
TODOTXT_SORT_COMMAND="sort -f -k2"