fixed repository environments so terraform will readd back in deploym…

…ent branch protection if it is removed manually from GitHub (#1981)

Co-authored-by: Keegan Campbell <me@kfcampbell.com>

github/resource_github_branch.go

@@ -191,7 +191,7 @@ func resourceGithubBranchImport(d *schema.ResourceData, meta interface{}) ([]*sc
 
 	// resourceGithubBranchRead calls d.SetId("") if the branch does not exist
 	if d.Id() == "" {
-		return nil, fmt.Errorf("repository %s does not have a branch named %s.", repoName, branchName)
+		return nil, fmt.Errorf("repository %s does not have a branch named %s", repoName, branchName)
 	}
 
 	return []*schema.ResourceData{d}, nil

github/resource_github_branch_protection_v3_utils.go

@@ -283,7 +283,7 @@ func expandRequiredStatusChecks(d *schema.ResourceData) (*github.RequiredStatusC
 					// If we have a valid app_id, include it in the RSC
 					rscAppId, err := strconv.Atoi(cAppId)
 					if err != nil {
-						return nil, fmt.Errorf("Could not parse %v as valid app_id", cAppId)
+						return nil, fmt.Errorf("could not parse %v as valid app_id", cAppId)
 					}
 					rscAppId64 := int64(rscAppId)
 					rscCheck = &github.RequiredStatusCheck{Context: cContext, AppID: &rscAppId64}

github/resource_github_repository_environment.go

@@ -172,6 +172,8 @@ func resourceGithubRepositoryEnvironmentRead(d *schema.ResourceData, meta interf
 				"custom_branch_policies": env.DeploymentBranchPolicy.CustomBranchPolicies,
 			},
 		})
+	} else {
+		d.Set("deployment_branch_policy", []interface{}{})
 	}
 
 	return nil