fix [#30087] operator_context is different for popup and submenu's *TODO, after 2.62*

having context different for menu vs submenu is quite confusing, now they are both: WM_OP_INVOKE_REGION_WIN
this changes WM_menu_invoke behavior.

source/blender/editors/interface/interface_layout.c

@@ -1450,6 +1450,11 @@ static void ui_item_menutype_func(bContext *C, uiLayout *layout, void *arg_mt)
 
 	menu.type = mt;
 	menu.layout = layout;
+
+	if (G.debug & G_DEBUG_WM) {
+		printf("%s: opening menu \"%s\"\n", __func__, mt->idname);
+	}
+
 	mt->draw(C, &menu);
 }
 

source/blender/editors/interface/interface_regions.c

@@ -46,6 +46,7 @@
 
 #include "BKE_context.h"
 #include "BKE_screen.h"
+#include "BKE_global.h"
 
 #include "WM_api.h"
 #include "WM_types.h"
@@ -2510,6 +2511,9 @@ uiPopupMenu *uiPupMenuBegin(bContext *C, const char *title, int icon)
 	pup->block->flag |= UI_BLOCK_POPUP_MEMORY;
 	pup->block->puphash = ui_popup_menu_hash(title);
 	pup->layout = uiBlockLayout(pup->block, UI_LAYOUT_VERTICAL, UI_LAYOUT_MENU, 0, 0, 200, 0, style);
+
+	/* note, this intentionally differs from the menu & submenu default because many operators
+	 * use popups like this to select one of their options - where having invoke doesn't make sense */
 	uiLayoutSetOperatorContext(pup->layout, WM_OP_EXEC_REGION_WIN);
 
 	/* create in advance so we can let buttons point to retval already */
@@ -2721,6 +2725,10 @@ void uiPupMenuInvoke(bContext *C, const char *idname)
 	menu.layout = layout;
 	menu.type = mt;
 
+	if (G.debug & G_DEBUG_WM) {
+		printf("%s: opening menu \"%s\"\n", __func__, idname);
+	}
+
 	mt->draw(C, &menu);
 
 	uiPupMenuEnd(C, pup);

source/blender/editors/screen/screen_ops.c

@@ -3082,6 +3082,9 @@ static int screen_animation_step(bContext *C, wmOperator *UNUSED(op), wmEvent *e
 		}
 		else {
 			if (sync) {
+				/* note: this is very simplistic,
+				 * its has problem that it may skip too many frames.
+				 * however at least this gives a less jittery playback */
 				const int step = max_ii(1, floor((wt->duration - sad->last_duration) * FPS));
 
 				/* skip frames */

source/blender/windowmanager/intern/wm_operators.c

@@ -674,6 +674,8 @@ int WM_menu_invoke(bContext *C, wmOperator *op, wmEvent *UNUSED(event))
 	else {
 		pup = uiPupMenuBegin(C, RNA_struct_ui_name(op->type->srna), ICON_NONE);
 		layout = uiPupMenuLayout(pup);
+		/* set this so the default execution context is the same as submenus */
+		uiLayoutSetOperatorContext(layout, WM_OP_INVOKE_REGION_WIN);
 		uiItemsFullEnumO(layout, op->type->idname, RNA_property_identifier(prop), op->ptr->data, WM_OP_EXEC_REGION_WIN, 0);
 		uiPupMenuEnd(C, pup);
 	}

source/blender/windowmanager/intern/wm_window.c

@@ -1080,7 +1080,7 @@ char *WM_clipboard_text_get(int selection)
 		return NULL;
 	
 	/* always convert from \r\n to \n */
-	newbuf = MEM_callocN(strlen(buf) + 1, "WM_clipboard_text_get");
+	newbuf = MEM_callocN(strlen(buf) + 1, __func__);
 
 	for (p = buf, p2 = newbuf; *p; p++) {
 		if (*p != '\r')