[#2646] Fix: 
[#2646] Fix: 

On inserting of new row, check if you're editing, and if so, save the editor position, cancel the edit and resume after the insert. 
lino-framework/lino,lsaffre/lino,lsaffre/lino,lino-framework/lino,lsaffre/lino,lino-framework/lino,lino-framework/lino,lsaffre/lino,lsaffre/lino,lino-framework/lino