TYPO3 Core

Steps to reproduce:

• Create a content element on the page
• Localize that content element to another language
• Create another content element in the same column below the first one
• Change the first content element to language "All"
• Press translate button in the Page module

Expected result:

• You can translate the second element

Actual result:

• Source language selection does not appear
• List of records to localize does not appear
• Clicking "Next" makes the window display spinning indicator forever

The cause

• Query in LocalizationRepository::fetchOriginLanguage will fetch two languages: -1 and 0. The first one will be returned: -1
• Since -1 is not localizable, it will be skipped, so there will be no source language to translate from
• Since there is no source language, there will be no records to translate
• The system does not expect to have a translation window when there is nothing to translate and will display the spinning wheel forever

Proposed fixes:

• Changing language to -1 should delete all translations of the record
• LocalizationRepository::fetchOriginLanguage should ignore language -1