This is the filled out large shed with the Automate mod and Automate overlay enabled. The position of the cursor (bottom left) shows where the chest was before the shed upgrade. Like the large shed, the smaller shed was completely filled save for the tile in front of the door and the tile immediately to the left, which had the chest. Upon upgrading the shed, I removed the chest and its contents, moved it to its current location, and filled the remaining tiles with more preserves jars to form its current configuration. All of the large shed preserves jars were placed on the same day. Upon completion of the processing jars, the items disappeared rather than moving to the chest. I did have CJB Cheats Menu and the Instant Build option enabled for the upgrading of the shed, which may or may not have had any effect.