android - TextInputLayout not reverting original edit text background on setError(null) -

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i using textinputlayout appcompatedittext having custom xml shape based background appcompatedittext.

my textinputlayout is:

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where @drawable/edittext_bg :

enter image description here

when set error on textinputlayout, background turns red ok. on removing error using seterror(null), background turns grey, not original one.

enter image description here

enter image description here

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