Fix flaky routes state test

Using the Param "name" to create an Item and persist turns out to be
affected bi Fiber's behaviour of "zero allocation", which means values
may be re-used across requests/contexts.

This caused wrong or chunked up Item names in the ephemeral state, which
only surfaced during unit testing.

For more details see https://docs.gofiber.io/#zero-allocation

routing/routes.go

@@ -130,7 +130,7 @@ func SetRoutes( router *f.App, config *configuration.Config, store state.Store,
 
 
     statePathGroup.Put( "/:name", func( c *f.Ctx ) error {
-        contentType := c.Get( "Content-Type" )
+        contentType := strings.Clone( c.Get( "Content-Type" ) )
         _, _, err := mime.ParseMediaType( contentType )
         if err != nil {
             c.Status( http.StatusBadRequest )
@@ -139,7 +139,7 @@ func SetRoutes( router *f.App, config *configuration.Config, store state.Store,
             )
         }
 
-        name := c.Params( "name" )
+        name := strings.Clone( c.Params( "name" ) )
         existingItem, err := store.Fetch( name )
         if err != nil {
             c.Status( http.StatusInternalServerError )
@@ -175,7 +175,7 @@ func SetRoutes( router *f.App, config *configuration.Config, store state.Store,
 
 
     statePathGroup.Delete( "/:name", func( c *f.Ctx ) error {
-        name := c.Params( "name" )
+        name := strings.Clone( c.Params( "name" ) )
         existingItem, err := store.Fetch( name )
         if err != nil {
             return c.SendStatus( http.StatusInternalServerError )