Unmasked value not working

[joweste]

Hi, I am testing your component.
Initially, I have cliente.telres="2124104003" and the component show this value correctly with the mask.
Then,I put the cursor on end of the input and delete the number "3". Then v-text-field shows:
(21)2410-400, but the "cliente.telresUnmasked" continues showing "212414003".

Am I doing something wrong?

My code:

<v-col cols="12" md="4">
                  <v-text-field
                    label="Tel Fixo"
                    v-model="cliente.telres"
                    class="purple-input"
                    return-masked-value
                    v-mask="{
                      mask: '(##) ####-####',
                      unmaskedVar: 'cliente.telresUnmasked',
                    }"
                  />
                  {{ cliente.telresUnmasked }}
</v-col>