Fix type check in AnimationTrackKeyEdit for methods

(cherry picked from commit ad769903b04f7c68aebc3aafb3addc41360bf64a)

editor/animation_track_editor.cpp

@@ -201,7 +201,7 @@ bool AnimationTrackKeyEdit::_set(const StringName &p_name, const Variant &p_valu
 
 					if (t != args[idx].get_type()) {
 						Callable::CallError err;
-						if (Variant::can_convert(args[idx].get_type(), t)) {
+						if (Variant::can_convert_strict(args[idx].get_type(), t)) {
 							Variant old = args[idx];
 							Variant *ptrs[1] = { &old };
 							Variant::construct(t, args.write[idx], (const Variant **)ptrs, 1, err);
@@ -786,7 +786,7 @@ bool AnimationMultiTrackKeyEdit::_set(const StringName &p_name, const Variant &p
 
 							if (t != args[idx].get_type()) {
 								Callable::CallError err;
-								if (Variant::can_convert(args[idx].get_type(), t)) {
+								if (Variant::can_convert_strict(args[idx].get_type(), t)) {
 									Variant old = args[idx];
 									Variant *ptrs[1] = { &old };
 									Variant::construct(t, args.write[idx], (const Variant **)ptrs, 1, err);