Description of problem:
Currently in document view, clicking on "Copy source" icons copies source from the same row, but mistakenly to the active cell editor, which might at different row.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Enter the document view from any project and version.
2. Activated cell editor of 1st row by clicking the translation cell.
3. Click the "Copy Source" icon on the 2nd row.
Source text of 2nd row are copied to the 1st row.
Cell editor at 1st row should be closed and saved;
then open the cell editor to fill the source text from 2nd row.
VERIFIED with Zanata version 1.4-SNAPSHOT (20110805-0602).