[Bug] Editing one variable in Meta changing all other variables' value.

[DattatreyaReddy]

Device information

• Tachidesk version: Tachidesk-Server-v0.6.2-r1074-linux-x64
• Server Operating System: Arch Linux
• Server Desktop Environment: KDE
• Server JVM version: java 17.0.2 2022-01-18 LTS
• Client Operating System: Arch Linux
• Client Web Browser: Firefox

Steps to reproduce

1. Send 2 or more variables to manga/{mangaId}/meta
2. Edit an already existing variable.

Expected behavior

Only the variable which was edited in step 2 should change, the remaining variables' value's should not change.

Actual behavior

The value of the edited variable is being copied to all other variables.