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

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