Create a transliterator with the following rule:
> A $1 B;
Apply it to "wxy".
The resulting text will be "wAxBy", which is correct. The styles should be
"11223" (where 1 is the style of w, 2 of x, 3 of y). However, they are 11223.
A test is in ReplaceableTest.java (this test should be ported to C as a part of
verifying that this bug is fixed).