pasting an overflow text skips the adjacent blank cell

Steps to Reproduce

1. open the attached xlsx in Excel
2. copy A1:D3
3. paste to keikai new file

Current Result

b2 is skipped. c2 is at B2

Expected Result

B2:D2 shows the correct pasted values

Debug Information

• if the adjacent cell is not blank, this bug doesn't happen.
• it's annoying for copy-paste

Workaround

keikai-383.js