Incorrect working during patches creation

[Dimona]

If you had value with type array in source array, then you try to change it to null it will create incorrect patches and it this is accompanied by many warnings.
example
fld: ['a' => 1, 'b' => 2]
target fld = null

result: array (size=2)
0 =>
array (size=2)
'op' => string 'remove' (length=6)
'path' => string '/fld/a' (length=31)
1 =>
array (size=2)
'op' => string 'remove' (length=6)
'path' => string '/fld/b' (length=32)

ER:
result: array (size=1)
0 =>
array (size=2)
'op' => string 'replace' (length=6)
'path' => string '/fld' (length=31)
'value' => null