Notes close when switching between apps

Steps to reproduce

1. Open latest Nextcloud app on iOS
2. Open .md file in the text editor
3. Switch away to another app
4. Switch back to Nextcloud app

Expected behaviour

Note stays open.

Actual behaviour

Note closes and the file browser shows.

Screenshots

https://user-images.githubusercontent.com/36998292/207470444-c2e49bf5-8fd0-4b70-a252-e72842851639.mp4

Logs

I think these logs from the iOS app show the problem:

2022-12-13 19:02:15 Network response request: https://cloud.raylyon.us/remote.php/dav/files/raylyon/Recipes/BBQ, result: success(1667 bytes)
2022-12-13 19:02:19 Network request started: GET https://cloud.raylyon.us/remote.php/dav/files/raylyon/Recipes/BBQ/Corn%20Pasta%20Salad.md
2022-12-13 19:02:19 Network request started: POST https://cloud.raylyon.us/ocs/v2.php/apps/files/api/v1/directEditing/open?path=/Recipes/BBQ/Corn%20Pasta%20Salad.md&editorId=text
2022-12-13 19:02:19 Network response request: https://cloud.raylyon.us/ocs/v2.php/apps/files/api/v1/directEditing/open?path=/Recipes/BBQ/Corn%20Pasta%20Salad.md&editorId=text, result: success(202 bytes)
2022-12-13 19:02:22 [INFO] Application will resign active
2022-12-13 19:02:25 [INFO] Application did enter in background
2022-12-13 19:02:25 [SUCCESS] Refresh task success submit request 60 seconds <BGAppRefreshTaskRequest: com.nextcloud.refreshTask, earliestBeginDate: 2022-12-14 00:03:25 +0000>
2022-12-13 19:02:25 [SUCCESS] Background Processing task success submit request 5 minutes <BGProcessingTaskRequest: com.nextcloud.processingTask, earliestBeginDate: 2022-12-14 00:07:25 +0000, requiresExternalPower=0, requiresNetworkConnectivity=0>
2022-12-13 19:02:26 [INFO] Application will enter in foreground
2022-12-13 19:02:26 Network request started: GET https://cloud.raylyon.us/status.php (200)
2022-12-13 19:02:26 Network request started: GET https://cloud.raylyon.us/ocs/v2.php/cloud/user
2022-12-13 19:02:26 Network request started: PROPFIND https://cloud.raylyon.us/remote.php/dav/files/raylyon/Recipes/BBQ
2022-12-13 19:02:26 Network request started: GET https://cloud.raylyon.us/index.php/avatar/gwenb/384
2022-12-13 19:02:26 Network response request: https://cloud.raylyon.us/status.php, result: success(172 bytes)
2022-12-13 19:02:26 Network request started: PROPFIND https://cloud.raylyon.us/remote.php/dav/files/raylyon/Recipes/BBQ
2022-12-13 19:02:26 Network response request: https://cloud.raylyon.us/ocs/v2.php/cloud/user, result: success(1066 bytes)
2022-12-13 19:02:26 Network request started: REPORT https://cloud.raylyon.us/remote.php/dav/files/raylyon
2022-12-13 19:02:26 Network request started: GET https://cloud.raylyon.us/index.php/avatar/raylyon/384
2022-12-13 19:02:26 Network request started: GET https://cloud.raylyon.us/ocs/v1.php/cloud/capabilities
2022-12-13 19:02:26 Network request started: GET https://cloud.raylyon.us/ocs/v2.php/apps/dashboard/api/v1/widgets
2022-12-13 19:02:26 [INFO] Application did become active
2022-12-13 19:02:26 [INFO] Initialize Auto upload with 0 uploads
2022-12-13 19:02:27 Network response request: https://cloud.raylyon.us/remote.php/dav/files/raylyon/Recipes/BBQ, result: success(1667 bytes)
2022-12-13 19:02:27 Network response request: https://cloud.raylyon.us/remote.php/dav/files/raylyon/Recipes/BBQ, result: success(1667 bytes)
2022-12-13 19:02:27 Network response request: https://cloud.raylyon.us/remote.php/dav/files/raylyon, result: success(16225 bytes)
2022-12-13 19:02:27 Network request started: PROPFIND https://cloud.raylyon.us/remote.php/dav/files/raylyon/Recipes/BBQ
2022-12-13 19:02:27 Network response request: https://cloud.raylyon.us/ocs/v2.php/apps/dashboard/api/v1/widgets, result: failure(Alamofire.AFError.responseValidationFailed(reason: Alamofire.AFError.ResponseValidationFailureReason.unacceptableStatusCode(code: 404)))

Environment data

iOS version: 16.1.1, 16.2

Nextcloud iOS app version: 4.5.7.0

Server operating system: Ubuntu 20.04

Web server: Apache

Database: MariaDB

PHP version: 8.0.25

Nextcloud version: 23.0.11

Reproduce the issue in the Nextcloud iOS app by opening a .md file, switching to another app, and returning, using the reported iOS and app versions where possible. Start with the application lifecycle events in the supplied logs; done means the note remains open instead of returning to the file browser after foregrounding.