Add after 259 line in "data_init.lua":
MergingChests.chest_override = MergingChests.chest_override or {}
MergingChests.chest_override[entity_data.chest_name] = math.max(data.raw.item[entity_data.chest_name].stack_size, max_area)
create new file "data-final-fixes.lua":
if MergingChests and MergingChests.chest_override then
for name, size in pairs(MergingChests.chest_override) do
data.raw.item[name].stack_size = size
end
end
It's fix all conflicts.