[TextInputEditText] Setting textIsSelectable=true disables soft keyboard on Samsung Devices

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**Description:**
When applying a style to a TextInputEditText, if the property `textIsSelectable` is set to true, the soft keyboard does not appear, specifically on Samsung devices, when the component is tapped on / focused. When this attribute is removed from its style, the soft keyboard appears to work just fine as expected.

**Expected behavior:**
When the TextInputEditText is tapped on / focused, the soft keyboard should appear.

**Source code:**
styles.xml where the component style is declared:
```

<item name="android:textIsSelectable">true</item>

```
theme.xml where the style is applied:
```

<item name="colorPrimary">@color/color_primary</item>
<item name="colorPrimaryVariant">@color/color_primary_variant</item>
<item name="colorSecondary">@color/color_secondary</item>
<item name="colorSecondaryVariant">@color/color_secondary_variant</item>

<item name="android:colorBackground">@color/color_background</item>
<item name="colorSurface">@color/color_surface</item>
<item name="colorError">@color/color_error</item>

<item name="colorOnPrimary">@color/color_on_primary</item>
<item name="colorOnSecondary">@color/color_on_secondary</item>
<item name="colorOnBackground">@color/color_on_background</item>
<item name="colorOnSurface">@color/color_on_surface</item>
<item name="colorOnError">@color/color_on_error</item>
<item name="colorBackgroundFloating">@color/color_background</item>

<item name="textInputStyle">@style/TextInputStyle</item>

```

**Android API version:**
7.0 (API 24)

**Material Library version:**
1.4.0-rc01

**Device:**
Samsung s6, Samsung Galaxy S6 edge+

Start by reproducing the issue with the styles.xml TextInputStyle and theme.xml Base.AppTheme examples, using TextInputEditText with android:textIsSelectable enabled on Android API 24 Samsung devices. Inspect the TextInputEditText behavior around focus and keyboard display; done means tapping or focusing the component reliably opens the soft keyboard without removing text selection.

Written by the indexing model from the issue text.