Fix "max depth in thread" setting

src/components/settings_modal/helpers/integer_setting.js

@@ -0,0 +1,37 @@
+import { get, set } from 'lodash'
+import ModifiedIndicator from './modified_indicator.vue'
+export default {
+  components: {
+    ModifiedIndicator
+  },
+  props: {
+    path: String,
+    disabled: Boolean,
+    min: Number
+  },
+  computed: {
+    pathDefault () {
+      const [firstSegment, ...rest] = this.path.split('.')
+      return [firstSegment + 'DefaultValue', ...rest].join('.')
+    },
+    state () {
+      const value = get(this.$parent, this.path)
+      if (value === undefined) {
+        return this.defaultState
+      } else {
+        return value
+      }
+    },
+    defaultState () {
+      return get(this.$parent, this.pathDefault)
+    },
+    isChanged () {
+      return this.state !== this.defaultState
+    }
+  },
+  methods: {
+    update (e) {
+      set(this.$parent, this.path, parseInt(e.target.value))
+    }
+  }
+}

src/components/settings_modal/helpers/integer_setting.vue

@@ -0,0 +1,20 @@
+<template>
+  <span class="IntegerSetting">
+    <label :for="path">
+      <slot />
+    </label>
+    <input
+      :id="path"
+      class="number-input"
+      type="number"
+      step="1"
+      :disabled="disabled"
+      :min="min || 0"
+      :value="state"
+      @change="update"
+    >
+    <ModifiedIndicator :changed="isChanged" />
+  </span>
+</template>
+
+<script src="./integer_setting.js"></script>