There is an updated pull request by steinex against master on the void-packages repository

https://github.com/steinex/void-packages flatpak-builder
https://github.com/void-linux/void-packages/pull/35117

flatpak-builder: update to 1.2.2.
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#### Testing the changes
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A patch file from https://github.com/void-linux/void-packages/pull/35117.patch is attached