Steps to Reproduce

1. load the attached file and composer
2. click A1~A10 one by one
3. check au request in developer tool or log message

Current Result

keikai doesn't send onCellClick event for each click. The log shows some clicking are missing (row, column):

0,0
1,0
2,0
3,0
6,0

The missing clicks are not always at the same cells.

Expected Result

keikai should send onCellClick event reliably for each click

Debug Information

• this bug affects keikai integration demo
• it doesn't happen on the column B or C. It doesn't happen on a blank sheet, either.