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I finished a translation of FreeCol into Interlingue (aka Occidental) last week and have been eager to see it go live but I haven't seen translatewiki drop by GitHub to update here:
It looks like it last made an update 18 days ago.
Here's where FreeCol is for reference:
For FreeCol, translewiki pushes the translations out to https://sourceforge.net/p/freecol/git/ci/master/tree/
Your translations are exported out to: https://sourceforge.net/p/freecol/git/ci/master/tree/data/strings/FreeColMessages_ie.properties
I think the GitHub repository is a mirror that is updated once in a while.