When clearing cache, also reset some data store in prefs/datastore.

features/ftue/impl/src/main/kotlin/io/element/android/features/ftue/impl/state/DefaultFtueState.kt

@@ -39,6 +39,11 @@ class DefaultFtueState @Inject constructor(
 
     override val shouldDisplayFlow = MutableStateFlow(isAnyStepIncomplete())
 
+    override suspend fun reset() {
+        welcomeScreenState.reset()
+        analyticsService.reset()
+    }
+
     init {
         analyticsService.didAskUserConsent()
             .onEach { updateState() }

features/ftue/impl/src/main/kotlin/io/element/android/features/ftue/impl/welcome/state/AndroidWelcomeScreenState.kt

@@ -17,6 +17,7 @@
 package io.element.android.features.ftue.impl.welcome.state
 
 import android.content.SharedPreferences
+import androidx.core.content.edit
 import com.squareup.anvil.annotations.ContributesBinding
 import io.element.android.libraries.di.AppScope
 import io.element.android.libraries.di.DefaultPreferences
@@ -27,7 +28,7 @@ import javax.inject.Inject
 @SingleIn(AppScope::class)
 class AndroidWelcomeScreenState @Inject constructor(
     @DefaultPreferences private val sharedPreferences: SharedPreferences,
-): WelcomeScreenState {
+) : WelcomeScreenState {
 
     companion object {
         private const val IS_WELCOME_SCREEN_SHOWN = "is_welcome_screen_shown"
@@ -40,4 +41,10 @@ class AndroidWelcomeScreenState @Inject constructor(
     override fun setWelcomeScreenShown() {
         sharedPreferences.edit().putBoolean(IS_WELCOME_SCREEN_SHOWN, true).apply()
     }
+
+    override fun reset() {
+        sharedPreferences.edit {
+            remove(IS_WELCOME_SCREEN_SHOWN)
+        }
+    }
 }

features/ftue/impl/src/main/kotlin/io/element/android/features/ftue/impl/welcome/state/WelcomeScreenState.kt

@@ -19,4 +19,5 @@ package io.element.android.features.ftue.impl.welcome.state
 interface WelcomeScreenState {
     fun isWelcomeScreenNeeded(): Boolean
     fun setWelcomeScreenShown()
+    fun reset()
 }

features/ftue/impl/src/test/kotlin/io/element/android/features/ftue/impl/welcome/state/FakeWelcomeState.kt

@@ -27,4 +27,8 @@ class FakeWelcomeState : WelcomeScreenState {
     override fun setWelcomeScreenShown() {
         isWelcomeScreenNeeded = false
     }
+
+    override fun reset() {
+        isWelcomeScreenNeeded = true
+    }
 }