auto fill doesn't keep number format for unlocked cells under sheet protection

Steps to Reproduce

1. import the testing file
2. select A1:E1
3. drag down E1 right-bottom corner to row 5

Current Result

• column B loses percentage format
• column C loses currency format
  

Expected Result

In Excel, it keeps its number format

Debug Information

• if I disable sheet protection, the issue is gone.
• select A1:B1 and D1:E1 , then do auto-fill also produces similar bugs. loses their original number format.

Workaround

check the branch keikai-516