fix(update-dependencies), resolve dependencies version from "update-dependents" prop of the lane

e2e/harmony/snap-from-scope.e2e.ts

@@ -473,6 +473,44 @@ export const BasicIdInput = () => {
         });
       });
     });
+    describe('updating a component in the lane then running update-dependencies command to update the dependents', () => {
+      let updateDepsOutput: string;
+      before(() => {
+        helper.scopeHelper.reInitLocalScope();
+        helper.scopeHelper.addRemoteScope(helper.scopes.remotePath);
+        helper.scopeHelper.getClonedRemoteScope(remoteScope);
+        helper.command.importLane('dev', '-x');
+        helper.command.snapComponentWithoutBuild('comp3', '--skip-auto-snap --unmodified');
+        helper.command.export();
+
+        const updateRemote = helper.scopeHelper.getNewBareScope('-remote-update');
+        helper.scopeHelper.addRemoteScope(helper.scopes.remotePath, updateRemote.scopePath);
+
+        const data = [
+          {
+            componentId: `${helper.scopes.remote}/comp2`,
+            dependencies: [`${helper.scopes.remote}/comp3`],
+          },
+        ];
+        // console.log('updateRemote.scopePath', updateRemote.scopePath);
+        // console.log(`bit update-dependencies '${JSON.stringify(data)}' --lane ${helper.scopes.remote}/dev`);
+        try {
+          updateDepsOutput = helper.command.updateDependencies(
+            data,
+            `--lane ${helper.scopes.remote}/dev`,
+            updateRemote.scopePath
+          );
+        } catch (err: any) {
+          updateDepsOutput = err.message;
+        }
+      });
+      // it's currently failing because comp3 is not in the npm registry, that's fine.
+      // all we care about here is that it won't fail because it cannot find the version of the dependency
+      it('should not throw an error saying it cannot find the version of the dependency', () => {
+        expect(updateDepsOutput).to.not.include('unable to find a version');
+        expect(updateDepsOutput).to.include('comp3 is not in the npm registry'); // not a mandatory test
+      });
+    });
   });
   describe('updating packages (not components)', () => {
     before(() => {

scopes/scope/update-dependencies/update-dependencies.main.runtime.ts

@@ -244,6 +244,12 @@ to bypass this error, use --skip-new-scope-validation flag (not recommended. it
       // exact version, expect the entered version to be okay.
       return compId;
     }
+    if (this.laneObj) {
+      // for "update-dependents" feature, we need the components from update-dependents prop of the lane to have get
+      // the updated versions of the dependencies from the lane.
+      const fromLane = this.laneObj.getCompHeadIncludeUpdateDependents(compId);
+      if (fromLane) return compId.changeVersion(fromLane.toString());
+    }
     return this.snapping.getCompIdWithExactVersionAccordingToSemver(compId);
   }