Fix content filters when excludeProjectDependencies() is used

Fixes gh-23763

Author: wilkinsona

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/tasks/bundling/LayeredSpec.java

@@ -369,7 +369,7 @@ ContentSelector<Library> asLibrarySelector(Function<String, ContentFilter<Librar
 			List<ContentFilter<Library>> excludeFilters = getExcludes().stream().map(filterFactory)
 					.collect(Collectors.toList());
 			if (this.excludeProjectDependencies) {
-				excludeFilters = new ArrayList<>(includeFilters);
+				excludeFilters = new ArrayList<>(excludeFilters);
 				excludeFilters.add(Library::isLocal);
 			}
 			return new IncludeExcludeContentSelector<>(layer, includeFilters, excludeFilters);

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/tasks/bundling/BootJarIntegrationTests-multiModuleCustomLayers.gradle

@@ -19,11 +19,12 @@ bootJar {
 			intoLayer("app")
 		}
 		dependencies {
-			intoLayer("subproject-dependencies") {
-				includeProjectDependencies()
-			}
 			intoLayer("snapshot-dependencies") {
 				include "*:*:*SNAPSHOT"
+				excludeProjectDependencies()
+			}
+			intoLayer("subproject-dependencies") {
+				includeProjectDependencies()
 			}
 			intoLayer("commons-dependencies") {
 				include "org.apache.commons:*"