Fix chunk symlinks to ensure overwriting old links #3868
Merged
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The
ensureSymlink()
function silently does nothing if the destination already exists, even if it isn't the correct symlink (see jprichardson/node-fs-extra#786, jprichardson/node-fs-extra#869, jprichardson/node-fs-extra#826). This means that with the new symlink chunk code (see #3354) we will never update a question chunk, even when there is a new version of the question available. To work around this we create the link with a temporary name and move it to the correct link name.