SharePrompt: RuntimeException Cannot confirm/dismiss a Prompt twice

[Amejia481]

https://sentry.prod.mozaws.net/operations/firefox/issues/9257357

java.lang.RuntimeException: Cannot confirm/dismiss a Prompt twice.
    at org.mozilla.geckoview.GeckoSession$PromptDelegate$BasePrompt.dismiss(GeckoSession.java:4)
    at org.mozilla.geckoview.GeckoSession$PromptDelegate$SharePrompt.dismiss(GeckoSession.java:2)
    at mozilla.components.browser.engine.gecko.prompt.-$$LambdaGroup$ks$8u4bVLX0p_V5ID86K2iFOrsJPms.invoke(com.android.tools.r8.jetbrains.kotlin-style lambda group:7)
    at org.mozilla.fenix.share.ShareFragment.dismiss(ShareFragment.kt:8)
    at androidx.navigation.fragment.DialogFragmentNavigator.popBackStack(DialogFragmentNavigator.java:7)
    at androidx.navigation.NavController.popBackStackInternal(NavController.java:15)
    at androidx.navigation.NavController.popBackStack(NavController.java:3)
    at androidx.navigation.NavController.popBackStack(NavController.java:2)
    at androidx.navigation.fragment.DialogFragmentNavigator$1.onStateChanged(DialogFragmentNavigator.java:4)
    at androidx.lifecycle.LifecycleRegistry$ObserverWithState.dispatchEvent(LifecycleRegistry.java:3)
    at androidx.lifecycle.LifecycleRegistry.backwardPass(LifecycleRegistry.java:10)
    at androidx.lifecycle.LifecycleRegistry.sync(LifecycleRegistry.java:5)
    at androidx.lifecycle.LifecycleRegistry.moveToState(LifecycleRegistry.java:5)
    at androidx.lifecycle.LifecycleRegistry.handleLifecycleEvent(LifecycleRegistry.java:2)
    at androidx.fragment.app.Fragment.performStop(Fragment.java:4)
    at androidx.fragment.app.FragmentStateManager.stop(FragmentStateManager.java:3)
    at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:31)
    at androidx.fragment.app.FragmentManager.moveFragmentToExpectedState(FragmentManager.java:4)
    at androidx.fragment.app.BackStackRecord.executeOps(BackStackRecord.java:26)
    at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:51)
    at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:10)
    at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:4)
    at androidx.fragment.app.FragmentManager$4.run(FragmentManager.java:1)
    at android.os.Handler.handleCallback(Handler.java:789)
    at android.os.Handler.dispatchMessage(Handler.java:98)
    at android.os.Looper.loop(Looper.java:164)
    at android.app.ActivityThread.main(ActivityThread.java:6944)
    at java.lang.reflect.Method.invoke(Method.java)
    at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)

┆Issue is synchronized with this Jira Task