Returns the next ID for text fitted to a width on its own (w:fitText), from a single counter shared by every run.
Word fits runs one after the other with the same ID together, and runs without one unreliably, so a run fitted
without a group is given an ID no other run has. The IDs count down from -1, as Word's own are negative, so they
don't meet the groups people give, which count up.
Returns the next ID for text fitted to a width on its own (
w:fitText), from a single counter shared by every run.Word fits runs one after the other with the same ID together, and runs without one unreliably, so a run fitted without a group is given an ID no other run has. The IDs count down from -1, as Word's own are negative, so they don't meet the groups people give, which count up.