The uploaded Image will automatically create link to the image's page every time node is save. Manually unlink the picture but it will re-create after click save.
The image formatter is configured to automatically link images displayed using the teaser view mode to their associated content.
If you don't want the default behaviour, visit the "Manage File Display" page for the Image file type, select the sub-tab for your desired view mode and change the "Link image to" setting (located on the "Image" vertical tab under "Display settings") to "Nothing".
Automatically closed - issue fixed for 2 weeks with no activity.
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