bug(sil_jarai): khmer word prediction does not disassociate any letter after a symbol

[Meng-Heng]

The behavior of the issue (Video).

Details: The word predicted from typing replaced the letter AND the symbol between them. It seems that the word prediction is only associated with the letter in front of the symbol. Anything that comes after the symbol is associated with the letter in front of the symbol.
Please let me know if more information is needed.

Keyman apps

• Keyman Developer

Keyboard name

• sil_jarai

Keyman version

• 16.0.144-stable

Operating system

• Windows 10

Keyboard version

• 1.0

Language name

• Jarai

Additional context

• https://keyman.com/keyboards/sil_jarai?bcp47=jra-khmr

Relevant issue

• bug(sil_jarai): khmer word prediction replacing the symbols with the word predicted #235

[Meng-Heng]

The solution #230