Force local headings to over-ride remote

USER_GUIDE.md

@@ -274,3 +274,5 @@ You can specify a `redirect` URL in the .DEREK.yml file, this instructs derek to
 apply local overrides and additions to the config set in the remote file.
 
 For example, to add a contributor to that repo (in addition to the existing contributors) you can specify the remote file and also add the `maintainers` section to your local file. These lists will then be merged, giving all users in the merged set access to derek.
+
+The exception to the rule in the merging of configs is in the `required_in_issues` feature where the locally configured values will fully override any and all values set in the remote config.

types/merge.go

@@ -11,5 +11,9 @@ func MergeDerekRepoConfigs(localConfig, remoteConfig DerekRepoConfig) (DerekRepo
 		return remoteConfig, mergeErr
 	}
 
+	if len(localConfig.RequiredInIssues) > 0 {
+		remoteConfig.RequiredInIssues = localConfig.RequiredInIssues
+	}
+
 	return remoteConfig, nil
 }

types/merge_test.go

@@ -78,3 +78,27 @@ func Test_mergeDerekRepoConfigs_ConfigValuesAppendedToList(t *testing.T) {
 	}
 
 }
+
+func Test_mergeDerekRepoConfigs_UseLocalHeadings(t *testing.T) {
+
+	remote := DerekRepoConfig{
+		RequiredInIssues: []string{
+			"#1",
+			"#2",
+		},
+	}
+	local := DerekRepoConfig{
+		RequiredInIssues: []string{
+			"#2",
+		},
+	}
+
+	got, err := MergeDerekRepoConfigs(local, remote)
+
+	if err != nil {
+		t.Errorf("Got error for a single plan, expected no error: %s", err.Error())
+	}
+	if len(got.RequiredInIssues) != len(local.RequiredInIssues) {
+		t.Errorf("RequiredInIssues want %s, but got %s", local.RequiredInIssues, got.RequiredInIssues)
+	}
+}