Merge branch 'underscore-templates' into 'master'

Naive attempt at fixing Underscore templates

## What does this MR do?

Attempts to fix part of #18939.

## Are there points in the code the reviewer needs to double check?

That this doesn't break anything.

## Why was this MR needed?

See #18939.

## What are the relevant issue numbers?

#18939 

## Does this MR meet the acceptance criteria?

- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing

See merge request !4842

app/assets/javascripts/issuable.js.coffee

@@ -11,11 +11,11 @@ issuable_created = false
   initTemplates: ->
     Issuable.labelRow = _.template(
       '<% _.each(labels, function(label){ %>
-        <span class="label-row btn-group" role="group" aria-label="<%= _.escape(label.title) %>" style="color: <%= label.text_color %>;">
-          <a href="#" class="btn btn-transparent has-tooltip" style="background-color: <%= label.color %>;" title="<%= _.escape(label.description) %>" data-container="body">
-            <%= _.escape(label.title) %>
+        <span class="label-row btn-group" role="group" aria-label="<%- label.title %>" style="color: <%- label.text_color %>;">
+          <a href="#" class="btn btn-transparent has-tooltip" style="background-color: <%- label.color %>;" title="<%- label.description %>" data-container="body">
+            <%- label.title %>
           </a>
-          <button type="button" class="btn btn-transparent label-remove js-label-filter-remove" style="background-color: <%= label.color %>;" data-label="<%= _.escape(label.title) %>">
+          <button type="button" class="btn btn-transparent label-remove js-label-filter-remove" style="background-color: <%- label.color %>;" data-label="<%- label.title %>">
             <i class="fa fa-times"></i>
           </button>
         </span>

app/assets/javascripts/labels_select.js.coffee

@@ -32,9 +32,9 @@ class @LabelsSelect
       if issueUpdateURL
         labelHTMLTemplate = _.template(
             '<% _.each(labels, function(label){ %>
-            <a href="<%= ["",issueURLSplit[1], issueURLSplit[2],""].join("/") %>issues?label_name[]=<%= _.escape(label.title) %>">
-            <span class="label has-tooltip color-label" title="<%= _.escape(label.description) %>" style="background-color: <%= label.color %>; color: <%= label.text_color %>;">
-            <%= _.escape(label.title) %>
+            <a href="<%- ["",issueURLSplit[1], issueURLSplit[2],""].join("/") %>issues?label_name[]=<%- label.title %>">
+            <span class="label has-tooltip color-label" title="<%- label.description %>" style="background-color: <%- label.color %>; color: <%- label.text_color %>;">
+            <%- label.title %>
             </span>
             </a>
             <% }); %>'

app/assets/javascripts/milestone_select.js.coffee

@@ -24,14 +24,14 @@ class @MilestoneSelect
       if issueUpdateURL
         milestoneLinkTemplate = _.template(
-          '<a href="/<%= namespace %>/<%= path %>/milestones/<%= iid %>" class="bold has-tooltip" data-container="body" title="<%= remaining %>"><%= _.escape(title) %></a>'
+          '<a href="/<%- namespace %>/<%- path %>/milestones/<%- iid %>" class="bold has-tooltip" data-container="body" title="<%- remaining %>"><%- title %></a>'
         )
         milestoneLinkNoneTemplate = '<span class="no-value">None</span>'
         collapsedSidebarLabelTemplate = _.template(
-          '<span class="has-tooltip" data-container="body" title="<%= remaining %>" data-placement="left">
-            <%= _.escape(title) %>
+          '<span class="has-tooltip" data-container="body" title="<%- remaining %>" data-placement="left">
+            <%- title %>
           </span>'
         )

app/assets/javascripts/users_select.js.coffee

@@ -61,8 +61,8 @@ class @UsersSelect
       collapsedAssigneeTemplate = _.template(
         '<% if( avatar ) { %>
-        <a class="author_link" href="/u/<%= username %>">
-          <img width="24" class="avatar avatar-inline s24" alt="" src="<%= avatar %>">
+        <a class="author_link" href="/u/<%- username %>">
+          <img width="24" class="avatar avatar-inline s24" alt="" src="<%- avatar %>">
           <span class="author">Toni Boehm</span>
         </a>
         <% } else { %>
@@ -72,13 +72,13 @@ class @UsersSelect
       assigneeTemplate = _.template(
         '<% if (username) { %>
-        <a class="author_link bold" href="/u/<%= username %>">
+        <a class="author_link bold" href="/u/<%- username %>">
           <% if( avatar ) { %>
-          <img width="32" class="avatar avatar-inline s32" alt="" src="<%= avatar %>">
+          <img width="32" class="avatar avatar-inline s32" alt="" src="<%- avatar %>">
           <% } %>
-          <span class="author"><%= name %></span>
+          <span class="author"><%- name %></span>
           <span class="username">
-            @<%= username %>
+            @<%- username %>
           </span>
         </a>
           <% } else { %>