DialogKeyboard/DialogNumeric heading label empty for many situations (since Kodi 18)

[axbmcuser]

Bug report

Describe the bug

The DialogKeyboard/DialogNumeric heading label is empty for many situations since Kodi 18
See https://forum.kodi.tv/showthread.php?tid=375059

I don't use or do much testing on the latest Kodi versions. Did some quick testing today on 22 nightly and the issue seemingly still exists.

Random example:

Tvheadend HTSP Client > Configure > Connection settings (tab) > "Name" > Click to open DialogKeyboard = heading text visible
Tvheadend HTSP Client > Configure > Connection settings (tab) > "Tvheadend hostname or IP adress" > Click to open DialogKeyboard = heading text missing

(Finally had some spare minutes to write this quick report so it does not get lost as asked by @Hitcher. ping @scott967)

Expected Behavior

Heading labels should not be empty

Actual Behavior

see above

Possible Fix

.

To Reproduce

see above

Debuglog

.

Screenshots

.

Additional context or screenshots (if appropriate)

See https://forum.kodi.tv/showthread.php?tid=375059

Your Environment

Used Operating system:

• Android

• iOS

• tvOS

• Linux

• macOS

• Windows

• Windows UWP

• Operating system version/name: Windows 10

• Kodi version: Kodi 20-22

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[ksooo]

Confirming the issue.
Seems the heading is empty for all addon-defined settings of type "edit" of any format ("string", "integer", ...).