Referencing, Replacing and Reloading Images in Revit

Did you ever notice this little button, available in the Manage Images dialog in Revit 2015?

Although it is pretty self-evident, here you can replace an image by reloading from a different one. You can also use the Reload button to reload an image from the ‘saved path’.

Example:
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This was a platform enhancement in 2015, as per:
About Managing Images | Revit Products | Autodesk Knowledge Network

You can read more about it at:
About Managing Images | Revit Products | Autodesk Knowledge Network