Test case :-
1) Set Toos/Options/Language Setting/Languages/CTL to Thai
2) Enable Language Setting/CTL/Use sequence checking, and Restricted
3) Create a blank Writer document
4) Switch the keyboard to Thai
5) type ก ('kor kai' on the d key)
6) Type  ่ ('mai ek' on the j key)
7) Type  ี ('sera ii' on the u key). Sequence input checking should not allow
this but it's entered into the document. However, you may not see the character
on Windows. See issue 42171.
8) Type backspace until the 'kor kai' is deleted. It'll take three backspaces.

It takes 2 backspaces to delete 'mai ek', because the 'sera ii' is allowed to
enter the document, which is wrong. The sequence input checking should stop this.

fixed in cws i18n17.

Reday for QA.

re-open issue and reassign to sba@openoffice.org

reassign to sba@openoffice.org

reset resolution to FIXED

SBA: Verified in CWS i18n17.

OK in m95.