Problem: TEXT Attributes set to TEXTAREA with a limit on number of characters will delete the initially typed text when the maximum number of characters has been reached ...

Example: Maximum is set to 200 and the 201 character is typed and the first 200 characters get deleted when the warning is displayed ...

Solution:
Edit /includes/modules/pages/product_info/jscript_textarea_counter.js

change this:
Code:
  if (excesschars > 0) {
		field.value = field.value.substring(0, excesschars);
		alert("Error:\n\n- You are only allowed to enter up to"+maxchars+" characters.");
to this:
Code:
  if (excesschars > 0) {
		field.value = field.value.substring(0, maxchars);
		alert("Error:\n\n- You are only allowed to enter up to"+maxchars+" characters.");
Do the same for other product types if needed ...