Inserting whitespace does not preserve point position

Thanks for this library! I've been using it for a bit and noticed a strange bug. Here's a minimal test case (assumes you have `shfmt` installed) # Setup Create a file `test.sh` and insert the following (delete the "|" character and place point there). ```sh function main() { a=| return 0 } ``` then run `apheleia-format-buffer`. FYI, the number of lines after point is significant. The bug shows up only if there are 2 or more lines after point in the buffer. Point moves as expected if the test case only has one line after it. # Expected ```sh function main() { a=| return 0 } ``` # Actual ```sh function main() { | a= return 0 } ```