fix(iaas): persist partial state during apply of network area resource

Author: rubenhoenle

stackit/internal/services/iaas/networkarea/resource.go

@@ -332,6 +332,12 @@ func (r *networkAreaResource) Create(ctx context.Context, req resource.CreateReq
 		return
 	}
 
+	// persist state - just in case anything goes wrong while creating the network area region
+	resp.Diagnostics.Append(resp.State.Set(ctx, model)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
 	// Deprecated: Will be removed in May 2026. Only introduced to make the IaaS v1 -> v2 API migration non-breaking in the Terraform provider.
 	if model.LegacyMode() {
 		core.LogAndAddWarning(ctx, &resp.Diagnostics, deprecationWarningSummary, deprecationWarningDetails)
@@ -524,6 +530,12 @@ func (r *networkAreaResource) Update(ctx context.Context, req resource.UpdateReq
 		return
 	}
 
+	// persist state - just in case anything goes wrong while updating the network area region
+	resp.Diagnostics.Append(resp.State.Set(ctx, model)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
 	// Deprecated: Will be removed in May 2026. Only introduced to make the IaaS v1 -> v2 API migration non-breaking in the Terraform provider.
 	if model.LegacyMode() {
 		core.LogAndAddWarning(ctx, &resp.Diagnostics, deprecationWarningSummary, deprecationWarningDetails)