In survival, you can add something into the furnace, however you can no longer add fuel and are not able to remove items without destroying the furnace to pick up the furnace and your items.
Linked issues
duplicates 1
Comments 3
Duplicate of MCPE-2453, please use the search function to see if your bug has already been submitted. Currently over 60% of tickets are being closed as duplicate.
Update to 0.7.1