Bug 435993

If you receive an appointment invitation and add to a calendar (Kolab IMAP or google), opening the modification dialog if the email of the sender is not one of your address, it compares partially on the dialog as organizer.
If you then save the appointment an for example you copy to another calendar, it rewrites the organizer as one of your address and send the appointment invitation to other members as you were the organizer.... this is very annoying, then you loose who was the original organizer

Linux/KDE Plasma: 
akonadi-server-debuginfo-20.04.2-lp152.2.6.1.x86_64
akonadi-calendar-tools-20.04.2-lp152.1.1.x86_64
akonadi-mime-lang-20.04.2-lp152.1.1.noarch
akonadiconsole-20.04.2-lp152.1.1.x86_64
akonadi-plugin-calendar-20.04.2-lp152.1.1.x86_64
akonadi-calendar-lang-20.04.2-lp152.1.1.noarch
akonadi-server-lang-20.04.2-lp152.2.6.1.noarch
akonadi-server-debugsource-20.04.2-lp152.2.6.1.x86_64
akonadi-notes-lang-20.04.2-lp152.1.1.noarch
akonadi-plugin-contacts-20.04.2-lp152.1.1.x86_64
akonadi-plugin-mime-20.04.2-lp152.1.1.x86_64
libakonadiprotocolinternals1-1.13.0-lp152.5.10.x86_64
akonadi-server-sqlite-20.04.2-lp152.2.6.1.x86_64
akonadi-server-20.04.2-lp152.2.6.1.x86_64
akonadi-search-lang-20.04.2-lp152.1.1.noarch
akonadi-search-20.04.2-lp152.1.1.x86_64
akonadi-plugin-kalarmcal-20.04.2-lp152.1.1.x86_64
akonadi-import-wizard-20.04.2-lp152.1.1.x86_64
libakonadi4-4.14.10-lp152.5.13.x86_64
akonadi-contact-20.04.2-lp152.1.1.x86_64
akonadi-calendar-tools-lang-20.04.2-lp152.1.1.noarch
akonadi-import-wizard-lang-20.04.2-lp152.1.1.noarch
akonadi-mime-20.04.2-lp152.1.1.x86_64
akonadi-contact-lang-20.04.2-lp152.1.1.noarch
korganizer-debuginfo-20.04.2-lp152.1.1.x86_64
korganizer-20.04.2-lp152.1.1.x86_64
korganizer-debugsource-20.04.2-lp152.1.1.x86_64
korganizer-lang-20.04.2-lp152.1.1.noarch

(available in About System)
KDE Plasma Version: plasma5-session-5.18.6-lp152.3.3.1.noarch

KDE Frameworks Version: KDE Frameworks 5.71.0
Qt 5.12.7 (compilato con 5.12.7)
Il sistema di finestre xcb