IE scrolls up when you click between lines

[Jakub Ś]

To reproduce:

1. Close page on which you want to test if it is open in browser and clear the cache
2. Open the page
3. In source mode paste in the below code

   <p>test1</p><p>test2</p><p>test3</p><p>	test4</p><p>test5</p>
   <p>test6</p><p>test7</p><p>test8</p><p>test9</p><p>test10</p>
   <p>test12</p><p>test13</p><p>test14</p><p>test15</p><p>test16</p>
   <p>test17</p><p>test18</p><p>test19</p><p>test20</p><p>test21</p>
   <p>test22</p><p>test23</p>
   

4. Switch to WYSIWYG and scroll down to last line
5. Click between line 23 and 22, a little bit on the left, like it is shown on 5615.png

(In IE6-8 you should have pointer cursor and in IE9 selection cursor)

Result: CKEditor will scroll up.
This issue has been reproducible in all versions of IE from CKE 3.0

[Jakub Ś]

Other tickets that concern scrolling problems in IE: #8393, #8729, #5615

[Jakub Ś]

I did a quick test and it seems that patch from #7932 has fixed this issue.