Describe the bug

The suggestion on the banner does not match the character directly to the left of the cursor. Three words begins with a different character.

To Reproduce

1. Install this keyboard and the its lm (brao_keyboard_and_lm.zip)
2. In the Keyman text editor area, press the key on the top left -- output ក
3. See error

Expected behavior

When ក is pressed, words beginning with ក should be shown on the suggestion, not those beginning with គ.

Keyman for Windows:

• OS: Windows 10 Pro 20H2 x64
• Keyman version: 14.0.252-beta
• Target Application: Chrome Version 89.0.4389.72 (Official Build) (64-bit) and Keyman app for Android

Keyman for Android:

• Device: Pixel 2 API 29 - emulator
• OS: Android 10
• Keyman version 14.0.252-beta
• Target application: Keyman

Keyboard

• Keyboard name: Brao (SIL)
• Keyboard version: 1.0
• Language name: Lave (Brao)

Additional context

When click away and click back to the right of the character (say, ក), then the expected words are shown in the banner.