[FIX] web: Allow the graph context option fill_temporal to be set

The option was available before but was forgotten when the graph view
was refactored.

closes odoo/odoo#77330

X-original-commit: 624fd812c5d6b01c0cc11e8620dc703dc0370f73
Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>

addons/web/static/src/views/graph/graph_model.js

@@ -414,7 +414,7 @@ export class GraphModel extends Model {
                         measures,
                         groupBy.map((gb) => gb.spec),
                         { lazy: false }, // what is this thing???
-                        { fill_temporal: true } // + old this.chart.context
+                        { fill_temporal: true, ...this.searchParams.context }
                     )
                     .then((data) => {
                         const dataPoints = [];

addons/web/static/tests/views/graph_view_tests.js

@@ -3478,4 +3478,43 @@ QUnit.module("Views", (hooks) => {
         ]);
         checkDatasets(assert, graph, "data", { data: [56, 26, 4, 105, 48] });
     });
+
+    QUnit.test("fill_temporal is true by default", async function (assert) {
+        assert.expect(1);
+
+        const graph = await makeView({
+            serverData,
+            type: "graph",
+            resModel: "foo",
+            mockRPC: function (route, args) {
+                if (args.method === "web_read_group") {
+                    assert.strictEqual(
+                        args.kwargs.context.fill_temporal,
+                        true,
+                        "The observal state of fill_temporal should be true"
+                    );
+                }
+            },
+        });
+    });
+
+    QUnit.test("fill_temporal can be changed throught the context", async function (assert) {
+        assert.expect(1);
+
+        const graph = await makeView({
+            serverData,
+            type: "graph",
+            resModel: "foo",
+            context: { fill_temporal: false },
+            mockRPC: function (route, args) {
+                if (args.method === "web_read_group") {
+                    assert.strictEqual(
+                        args.kwargs.context.fill_temporal,
+                        false,
+                        "The observal state of fill_temporal should be false"
+                    );
+                }
+            },
+        });
+    });
 });