use limit and actualLimit, to avoid saving the default value

Author: NAR8789

src/js/storage.js

@@ -452,10 +452,10 @@ module.exports = {
     // Select the top posts for every possible sort method, to give us a limited
     // index of the posts that each filter method would select.
     //
-    follow.limit = follow.limit || POSTS_IN_MAIN_INDEX
+    follow.actualLimit = follow.limit || POSTS_IN_MAIN_INDEX
     follow.posts = frago.master(meta,
       meta.sortBy ? [meta.sortBy] : ['publishedAt', 'updatedAt'],
-      follow.limit)
+      follow.actualLimit)
     follow.sortedBy = meta.sortedBy
 
     //

src/js/view.js

@@ -157,7 +157,7 @@ const FollowForm = (match, setup, isNew) => ({follows}, actions) => {
       <label for="title" class="optional">Limit</label>
       <input type="number" id="limit" value={follow.limit} min='0' step='1'
         oninput={e => follow.limit = e.target.value} />
-      <p class="note">(Number of recent feed entries to show)</p>
+      <p class="note">Number of recent feed entries to show. (If left blank, defaults to <em>10</em>)</p>
     </div>
 
     <button onclick={e => {u('#working').attr('style', 'display: block'); return actions.follows.save(follow)}}>Save</button>
@@ -423,7 +423,7 @@ const ListFollow = ({ location, match }) => ({follows}, actions) => {
               {follow.posts instanceof Array && follow.posts.length > 0 &&
                 <div class="post">
                 <ol class="title">{(showReposts ? follow.posts : follow.posts.filter(x => !x.author || x.author === follow.author)).
-                  slice(0, follow.limit || 10).map(f => {
+                  slice(0, follow.actualLimit || 10).map(f => {
                     let postAge = timeAgo(f[sortPosts], now)
                     return <li class={timeDarkness(f[sortPosts], now)}>
                       {f.author && f.author !== follow.author && <span class="author">{f.author}</span>}