Xcode stuck generating localization comments

Xcode 26.5 stucks on Localization Generating Comments:

Running on macOS Tahoe 26.5

When this happens, Xcode does not add new keys, although enabled:

The only (known) workaround is to restart Xcode.

Same happened with Xcode 26.4, 26.4.1 on macOS 26.4.1.

Xcode stuck generating localization comments
 
 
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