The `in int flag;` in `gpu_shader_2D_edituvs_faces_vert.glsl` don't have the values `FACE_UV_ACTIVE` and `FACE_UV_SELECT`. Add face flags then. Original patch is from @EitanSomething Differential revision: https://developer.blender.org/D6520
The `in int flag;` in `gpu_shader_2D_edituvs_faces_vert.glsl` don't have the values `FACE_UV_ACTIVE` and `FACE_UV_SELECT`. Add face flags then. Original patch is from @EitanSomething Differential revision: https://developer.blender.org/D6520