Blender Version Bump

Without this, render slots aren't added.

source/blender/blenkernel/BKE_blender_version.h

@@ -28,7 +28,7 @@
  * and keep comment above the defines.
  * Use STRINGIFY() rather than defining with quotes */
 #define BLENDER_VERSION         280
-#define BLENDER_SUBVERSION      18
+#define BLENDER_SUBVERSION      19
 /* Several breakages with 280, e.g. collections vs layers */
 #define BLENDER_MINVERSION      280
 #define BLENDER_MINSUBVERSION   0

source/blender/blenloader/intern/versioning_280.c

@@ -1588,6 +1588,9 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 				}
 			}
 		}
+	}
+
+	if (!MAIN_VERSION_ATLEAST(bmain, 280, 19)) {
 		if (!DNA_struct_elem_find(fd->filesdna, "Image", "ListBase", "renderslot")) {
 			for (Image *ima = bmain->image.first; ima; ima = ima->id.next) {
 				if (ima->type == IMA_TYPE_R_RESULT) {