[Bug]: Invalid translations for numeric translation keys

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Description see: pimcore/pimcore#18171
Tagged with: PR Welcome

Since we faced the same problem and were able to prove that the proposed solution works perfectly, we would like to provide the PR for it.

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PR provided.

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Fyi, it seems it was already solved with #968 😅
I guess because it was reported initially in the main Pimcore project it was not detected as duplicate. 🙂