App crash on click of Device Home Button after adding tag while creating new task.

Expected behavior

<p dir="auto">Tasks app allows users to assign tags to their task while creating new task. Excepted behaviour from app is while creating a new task, i assigned some tags to my task and now if without saving if i click on my device 'Home Button' then the app needs to be go to background not crash. <h4>Actual behavior <p dir="auto">While creating a new task i fill the details of my task, then i came to a section where i can categorise my task by adding tags. So i add a tag and then without saving my task, i clicked on my device 'Home Button' and app got crashed. <h4>How to reproduce <p dir="auto">To reproduce the bug follow the following steps :- <ul> <li>Open app and click on '+' icon to create a new task. <li>Now you have a screen where you can add details of your task. <li>Now you see a field name 'Uncategorized', click on the field. A pop up will open with 'create a new tag field'. Enter anything in the field and press anywhere on your screen to close the popup. <li>Now your tag is created. Just press the 'Home Button' of your device and you will see the app got crashed. <pre><code> * Device: Samsung J7 Prime * Operating system: Android 7.0 Nougatt * App Version: v5.3.4 <h4>Recording Of The Bug <p dir="auto"> <p dir="auto"><br /><hr /><em>Posted on <a href="https://utopian.io/utopian-io/@iamankit/app-crash-on-click-of-device-home-button-after-adding-tag-while-creating-new-task" target="_blank" rel="noreferrer noopener" title="This link will take you away from hive.blog" class="external_link">Utopian.io - Rewarding Open Source Contributors<hr /><p>