Created attachment 183697 [details]
same operation displayed from the 5.1.3 version and 5.2.0 version

SUMMARY
Label that are linked with operations in a file created with the 5.1.3 version are not displayed with the 5.2.0 version' operations account tab.

STEPS TO REPRODUCE
1. Download latest version (kmymoney-5.2-4581-linux-gcc-x86_64.AppImage)
2. Run the app and load a file saved with 5.1.3 version
3. Open account operations tab

OBSERVED RESULT
The label doesn't exist from the operations, but :
- they are present in the label select list in edit mode
- labels are present in the labels tab
- in the labels tab, they are linked with their operations
- if I edit an operation and select a label with the 5.2.0 version, it remains displayed.

EXPECTED RESULT
The label already linked with an operation in a file created with the 5.1.3 version must be displayed with the 5.2.0 version.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: LMDE 6 Faye