Sachin says to indicate that this issue and IID 8764 are regressions. They do not occur in v13.0.0-3
Version: 13.0.0-7
Build #: 32083
Build Date: 2013-Apr-26 07:24:40 AM
1. generate a grid result with more than 10 rows
2. click on the row number for row 2, depress the shift key
3. with shift still depressed, click on row 4 don't release shift
4. without releasing shift, click on row 8
5. you will notice that the row you selected in step 2 is no longer selected.
6. with shift still depressed click on row 10
7. you will now only have 4 rows closest to row 10 selected, even though you should have rows 2 -10 (inclusive) selected
See attached GIF Animation