Bug in Prestashop v1.6.1.16 with quantity in "Catalog->Products" when you make supply orders

[SLIVERPOOLS]

Sorry for my bad english

In Prestashop version 1.6.1.16 exist bug — quantity in "Catalog->Products" and quantity in "Instant stock status" not the same, when you make supply orders (in products, which have combinations)

More specifically:
I have Test Product A with 3 Combinations Size:
Size - S
Size - M
Size - L
 
Now in "Instant stock status"
Test Product A Size - S = 0 pcs.
Test Product A Size - M= 0 pcs.
Test Product A Size - L = 0 pcs.
 

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and in "Catalog->Products"
Test Product A = 0 pcs.
 

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All OK.

But now, I make supply order — And add 2 pcs. of Test Product A Size - S
And even on 4-th status (of supply orders - Order received in part), I see the bug:
 

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Then I make 5 status (Order received completely)
And bug not disappear:
 

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2 pcs. Did not appear.

I can come back it in 2 ways !
1) I must сlick on
"Edit" Test Product A - and "Save" it
After that 2 pcs. - appear !!!
 

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But, if I want make supply order on 20 products? I must resave that 20 products? so I find another way^
2) Go to the -> Stock/Warehouses/Edit (Warehouses)/and "Save" Warehouses
 

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That appear all bug quantity.

P.S.
In Products, that do not have combinations - exist a part of this bug.
What I mean:
The quantity in "Catalog->Products" NOT appear - when status of supply orders - in 4 (Order received in part)
But, when change status in 5 (Order received completely) - quantity in "Catalog->Products" — APPEAR !!!

Please HELP, because we update presta from 1.6.0.14, and there everithing work fine - in supply orders