Dialogs Declared in GutenbergEditorFragment Lost/Dismissed with Screen Rotation

Expected behavior

I expected dialogs to remain on screen, even when the orientation is changed from portrait to landscape.

Actual behavior

The following dialogs declared in the GutenbergEditorFragment file are lost/dismissed with screen rotation:

• showCancelMediaUploadDialog - being worked on in https://github.com/wordpress-mobile/WordPress-Android/pull/14810
• showRetryMediaUploadDialog
• showCancelMediaCollectionSaveDialog
• showCancelMediaCollectionUploadDialog
• showRetryMediaCollectionUploadDialog

This is not only unexpected but can lead to some buggy behaviour, an example of which is given in the below steps to reproduce.

Steps to reproduce the behavior

Steps for showCancelMediaUploadDialog

• Navigate to the post editor.
• Add a new image block and choose the option to upload an image directly from your device.
• Immediately tap on the image block as the upload begins in order to generate the "cancel" dialog.
• Switch the orientation of the device and observe how the dialog is lost.

Additional buggy behaviour to note from this specific example: The image will appear to be permanently in an "uploading" state and any attempts to tap on it result in the "cancel" dialog appearing again, even though the image has been uploaded to the site's media library.

The "after" from the following screenshot shows the loading indicator overlaying the image, following the above steps, even though the image has actually been uploaded to the site's media library. If I tap on the image in this case, the "cancel" dialog appears again, even though it's not actually possible to prevent the upload.

Before Rotation	After Rotation

Steps for Other Dialogs

screenshots for reference

showCancelMediaCollectionSaveDialog	showCancelMediaCollectionUploadDialog

showRetryMediaCollectionUploadDialog	showRetryMediaUploadDialog

Tested on Pixel 5, Android 11, WPAndroid 17.1

Start in libs/editor/WordPressEditor/src/main/java/org/wordpress/android/editor/gutenberg/GutenbergEditorFragment.java and inspect the five named dialog methods around fragment recreation. Reproduce the listed upload and airplane-mode cases while rotating the device, then verify each dialog remains available after rotation and no longer leaves uploads in an incorrect state.