Uses cached version on import despite external changes in the model

[xahon]

1. When I import a model in .usda format
2. Then externally change some parameters and save the file
3. Remove all object in blender (A + Delete)
4. Then import the same file again - changes are not reflected in the blender.

If replace 3rd with creating a new blender project (File -> New -> General -> Remove default stuff with A + Delete) and then import, changes are reflected as expected.

Sample model

#usda 1.0
(
    doc = "Blender v3.3.1"
    metersPerUnit = 1
    upAxis = "Z"
)

def Xform "Plane"
{
    matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) )
    uniform token[] xformOpOrder = ["xformOp:transform"]

    def Mesh "Plane"
    {
        int[] faceVertexCounts = [4]
        int[] faceVertexIndices = [0, 1, 3, 2]
        normal3f[] normals = [(0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1)] (
            interpolation = "faceVarying"
        )
        point3f[] points = [(-1, -1, 0), (1, -1, 0), (-1, 1, 0), (1, 1, 0)]
        texCoord2f[] primvars:UVMap = [(0, 0), (1, 0), (1, 1), (0, 1)] (
            interpolation = "faceVarying"
        )
        uniform token subdivisionScheme = "none"
    }
}

Try to do the steps and on step 2 change, for example, point3f[] points = [(-1, -1, 0), (1, -1, 0), (-1, 1, 0), (1, 1, 0)] to point3f[] points = [(-1, -1, 1), (1, -1, 0), (-1, 1, 0), (1, 1, 0)]. Logically the coplanarity of the plane should fade away but the plugin uses previous version (probably due to caching)

---

Blender 3.3.1 (b29cfe5a936) Built-in version of USD plugin (not shown in the addons list)

[xahon]

I guess that blender now uses built-in version of the USD plugin and this repo is wrong. Main issue is here: https://developer.blender.org/T103276