Created attachment 126939 [details]
Screenshot after 2nd cd is inserted and cd ripping window is updated.

SUMMARY


STEPS TO REPRODUCE
1. Insert a normal CD with CD-Text and/or with a available entry from MusicBrainz
2. Rip it
3. Insert a CD without CD-Text and without having a entry eg. from MusicBrainz
4. Rip it

OBSERVED RESULT
The old CD-Text will be still showed on the CD-ripping window.
The old CD-Text from CD 1 will be also used for ripping of CD 2 wo the CD1 files will be overwritten with wrong filenames.


EXPECTED RESULT
At changing the CDs the information in the windows should be cleared, if no CD-Text is available.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Debian 10
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 5.54.0
Qt Version: 5.11.3

ADDITIONAL INFORMATION
Using in xfce 4.12

E.g I used first a cd diskid x2OWM_2dNv.W7cLlyEqm9cYSFoE- with 3 tracks
then I used cd diskid KaNMrvHuotpDX6FAwpSgW0rCZXM- with 4 tracks.
Here the first 3 tracks will be used from 2. CD and the forth track entry is empty. Check attachment.