Perspective doesn't factor in transforms correctly (regression)
#### Steps to reproduce: * Open [inkscape-test-perspective.svg](/uploads/323c6ec6776a449e0b0c3097a448567d/inkscape-test-perspective.svg) * Select the red shape and using shift key, select the black path * Apply **Extension -> Modify Path -> Perspective** #### What happened? Shape is drawn somewhere outside selection and also shape is random, not what it should be. This is due to the `transform="scale(0.26458333)"` applied to the red path (translate and presumably all transforms are affected). | before | after | | ------ | ------ | | ![inkscape-test-perspective.svg](/uploads/abac3cd4eb7c870168ab3dd3205427e2/inkscape-test-perspective.svg) | ![image](/uploads/98908953c45bfdc4ecd66643ea8f5bf8/image.png) [inkscape-test-perspective-result.svg](/uploads/8eb16835bf7adc3f89942fb762852a8a/inkscape-test-perspective-result.svg) | #### What should have happened? Expected result: Here is how it looks on older versions (or if the path was nudged before applying the extension. ![image](/uploads/13157875af16fb10aa46815ec954dfc4/image.png) #### Inkscape Version and Operating System: - Inkscape Version: 1.0 (4035a4fb49, 2020-05-01) - Operating System: Windows 10 Home (64 bit) - Operating System version: 1909
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