ensure :error-relative is number

src/cljc/lernmeister/components/exercise_types/calculation/migrate.cljc

@@ -11,7 +11,7 @@
   (partial modify-exercise-field-vec exercise [:core :calculations]))
 
 (defn set-missing-error-relative [exercise]
-  ((modify-calculations exercise) #(assoc % :error-relative (or (:error-relative %) "1"))))
+  ((modify-calculations exercise) #(assoc % :error-relative (or (:error-relative %) 1))))
 
 (defn convert-numbers [exercise]
   ((modify-calculations exercise) convert-number-to-object))

src/cljs/lernmeister/components/exercise_types/calculation/views/edit.cljs

@@ -28,7 +28,7 @@
    :number {:significand nil :order-of-magnitude "0"}
    :correct-points 0
    :incorrect-points 0
-   :error-relative "1"})
+   :error-relative 1})
 
 (defn set-prop-in-all-calcs [prop-key value calc-cursor]
   (dorun (map-indexed