Chore: 2.8.13

# [2.8.13](v2.8.12...v2.8.13) (2022-12-06)

## Fix
* Deal with collection modified error
* Deal with collection modified error

src/Tree/Tree.csproj

@@ -5,7 +5,7 @@
 		<AssemblyName>Coscine.Api.Tree</AssemblyName>
 		<GenerateDocumentationFile>true</GenerateDocumentationFile>
 		<TargetFramework>net6.0</TargetFramework>
-		<Version>2.8.12</Version>
+		<Version>2.8.13</Version>
 	</PropertyGroup>
 	<PropertyGroup>
 		<Authors>RWTH Aachen University</Authors>