Pan version 0.14.2.91 (isn't in version list). 
 
Using shift-up or shift-down does not behave as expected (and as I would 
consider as the standard behaviour). To recreate: 
 
1) Select a header 
2) Hold down shift and tap down a number of times 
 
The first article should stay selected and the headers below it should become 
selected as you press the down key. What happens at the moment it that only 
the last two headers you select remain selected. This does work if you hold 
the down key but its hard to let go at exactly the last header you wish to 
select.   
 
Note this is not a duplicate of #118967.