Black screen appears after tapping the back key

Black screen is displayed after tapping the back key when editing SIM name.

To reproduce:
Settings->Dual SIM->tap the SIM name->tap back key.

[Expected Result]
Screen should be displayed normally.

[Actual Result]:
Black screen is displayed.

The cause is the dialog is not finished when it's dismissed.

Bug: 32934740
Change-Id: Ieddb65247cfe7b9434c8cfa7aeec2396616d9b81