[Fix] (MG_Backend/DirectGLES, MG_Impl/GLImpl): draw/read-buffer state could land on the wrong FBO (glDrawBuffer's static-array latch; SyncToBackend emitting glDrawBuffers/glReadBuffer for the non-bound target; no resync on bound-FBO attachment/drawbuffer edits) leaving MC 26.3's OIT color clears as no-ops; apply per bound target and track the FBO object version

MobileGL/MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.cpp

@@ -1177,7 +1177,7 @@ namespace MobileGL::MG_Impl::GLImpl {
             auto& bindingSlot = MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw);
             auto& fbo = bindingSlot.GetBoundObject();
             const bool isDefaultFBO = (fbo == FramebufferImpl::pDefaultFramebufferInfo->defaultFBO);
-            static GLenum bufs[] = {buf};
+            const GLenum bufs[] = {buf};
             DrawBuffersForFramebuffer_State(fbo, isDefaultFBO, 1, bufs, true);
         }
     }

MobileGL/MG_Impl/GLImpl/Program/GL_Program.cpp

@@ -1406,6 +1406,7 @@ namespace MobileGL::MG_Impl::GLImpl {
         }
 
         const auto& index = programObject->GetUniformBlockIndex(uniformBlockName);
+        MGLOG_D("GBI prog=%u name='%s' -> %d", program, uniformBlockName ? uniformBlockName : "(null)", (Int)index);
         return index;
     }
 
@@ -1429,6 +1430,7 @@ namespace MobileGL::MG_Impl::GLImpl {
                         std::to_string(program) + "."));
             return;
         }
+        MGLOG_D("UBB prog=%u idx=%u binding=%u", program, uniformBlockIndex, uniformBlockBinding);
         programObject->SetUniformBlockBinding(uniformBlockIndex, uniformBlockBinding);
     }