Workflow

• When the user tries to paste a screenshot as an attachment(pressing ctrl + v after taking screenshot) on an issue/ticket, the attachment screen pops up.
• User hits the tab button and in the 10.x version of Jira, the cursor doesn’t autoselect the default file name but in 9.12.x version of Jira, the cursor auto selects the default file name so that the user could rename the filename.

9.12 - Click on tab and the entire filename is selected so that the user can rename the file. 

10.x - Clicking on tab doesn't select the entire file name, rather the cursor is at the start of the file name, so the user has to select the name manually and then rename to the preferred file name.