The InternalLevel Part of ItemLink of Food is not Calculated in Guild Banks

[MelanAster]

I'm working on a guild bank related addon and have found that
food stored in the guild bank has a different ItemLink.
InternalLevel is always 0.
This is not the case with other items.

--Food
ItemLink = "|H1:item:68263:309:50:0:0:0:0:0:0:0:0:0:0:0:0:0:1:0:0:0:0|h|h" -- Backbag
ItemLink = "|H1:item:68263:309:50:0:0:0:0:0:0:0:0:0:0:0:0:0:1:0:0:0:0|h|h" -- Person Bank
ItemLink = "|H1:item:68263:309:0:0:0:0:0:0:0:0:0:0:0:0:0:0:1:0:0:0:0|h|h" -- Guild Bank
 
--Position
ItemLink = "|H1:item:76829:30:3:0:0:0:0:0:0:0:0:0:0:0:0:36:1:0:0:0:267520|h|h" -- Backbag
ItemLink = "|H1:item:76829:30:3:0:0:0:0:0:0:0:0:0:0:0:0:36:1:0:0:0:267520|h|h" -- Person Bank
ItemLink = "|H1:item:76829:30:3:0:0:0:0:0:0:0:0:0:0:0:0:36:1:0:0:0:267520|h|h" -- Guild Bank

I think it's probably a bug.