Steps to reproduce:
1. Open attached project's scene "Default"
2. Enter play mode.
3. Observe not correctly copied materials:
Two cubes in a front should look the same, two cubes and the back should change colors randomly. Right cubes have copied materials from left cubes.
4. In "Color Change Dest" and "Transparent Dest" inspector expand material component. One at the back ("Color Change Dest") starts working, at the front "Transparent Dest" gets correcrt color, but transparency is still not displayed correctly.
5. Exit play mode.
6. Select "Color Change Dest" and "Transparent Dest" and in the script "Copy Material" check "Copy Shader Keyword".
7. Enter play mode.
8. Cubes look like after step 4. (Transparency is still not displayed correctly)