pop: break endless loop

sbom.json

@@ -7,7 +7,7 @@
       "bom-ref": "pkg:nim/preserves",
       "name": "preserves",
       "description": "data model and serialization format",
-      "version": "20240608",
+      "version": "20240610",
       "authors": [
         {
           "name": "Emery Hemingway"

src/preserves.nim

@@ -152,6 +152,7 @@ proc pop*(pr: var Value; key: Value; val: var Value): bool =
         val = move pr.dict[i].val
         delete(pr.dict, i .. i)
         return true
+      inc i
 
 proc `[]`*(pr, key: Value): Value {.deprecated: "use step instead".} =
   ## Select a value by `key` from `pr`.