I need to rip apart an object at its seams. Typically, I would do so by selecting a seam, selecting similar edges, and ripping the vertices apart. However, some objects have several seams that form the edges of a single triangular face; both similarity selection and manual edge selection have the same effect of selecting those faces enclosed by those seams, causing the error:
Cannot rip selected faces
when subsequently attempting to rip the selection.
I believe that this means that I need to deselect these faces before performing the rip operation. But how do I select the seams of these objects without selecting any faces between them?