Drupal: unwanted duplicated nodes

I'm experiencing some bugs with Drupal on a server. Sometimes when I update a node, a copy of this node (with the same title) is saved and I have to delete the wrong copies.

I suspect this is caused by the fUpload (multiple upload) CCK field, that allow you to upload multiple images. But I'm not sure about that, there is nothing in the l开发者_开发百科ogs about this.

Is this a common issue ?

thanks

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It's not a common issue, and it's not an issue caused by Drupal core code.

Disable all the modules, or uninstall them, and then re-enable/install them one at time; each time you enable/install a new module, try creating a new node. Doing so, you should find which module causes the issue. It is even better if you try with a fresh installation of Drupal.

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I'd suspect a nodeapi create/update hook and/or some custom code around creating a second node. Just a guess.