OptionalfirstThe iteration of the file on the left side of the diff that the thread will be tracked to. Threads were tracked if this is greater than 0.
OptionalorigOriginal filepath the thread was created on before tracking. This will be different than the current thread filepath if the file in question was renamed in a later iteration.
OptionalorigOriginal position of last character of the thread's span in left file.
OptionalorigOriginal position of first character of the thread's span in left file.
OptionalorigOriginal position of last character of the thread's span in right file.
OptionalorigOriginal position of first character of the thread's span in right file.
OptionalsecondThe iteration of the file on the right side of the diff that the thread will be tracked to. Threads were tracked if this is greater than 0.
Comment tracking criteria is used to identify which iteration context the thread has been tracked to (if any) along with some detail about the original position and filename.