Problem Description:

When pasting range overlaps copying range, pasting works incorrectly. It pasting wrong data to destination cells.

Reproducing Steps:

1. enter a serie of number in adjacent cells in a row, e.g. 1, 2, 3, 4, 5 in Spreadsheet
2. select and copy those 5 cells
3. select the cell that has "2", paste the copied content

Expected:
the cells should display 1, 1, 2, 3,4, 5

Actual:
the cells display 1,1,1,1,1,1