Check box not rendering and therefore, the block Mass action does not work.

[kiratskitizing]

The checkbox that block Mass action use is not rendered using Moodle 3.9, in effect, the block Mass action does not work. Please see below.
Environment:

• Moodle Core 3.9.6+ (Build: 20210330) using theme_boost
• Block Mass Action v5.1.3 - 2018042400 (https://moodle.org/plugins/block_massaction/versions)
• Collapsed Topic 3.9.1.4 - 2020071809 (https://moodle.org/plugins/format_topcoll/versions)
  Results:

1. Course using Topic Format: (Mass action does not work)
2. Course using Collapsed Topic: (Mass action does not work)

It looks like the plugin is broken and it does not work on Moodle core latest 3.9.6 release as well. Please see below.

• Moodle Core 3.9.6 (Build: 20210325) using theme_boost
• Collapsed Topic 3.9.1.4 (2020071804)
• Block Mass Action v5.1.3 - 2018042400

Results: The mass action block does not work for both Collapsed Topic and Topic format.

[tlock]

Change required per (https://github.com/Syxton/moodle-block_massaction/releases/tag/5.1.4):

blocks/massaction/amd/src/block_massaction.js:

+                    if (!courseActivities.length) {
+                        courseActivities = $('#section-' + jQueryIdentifier).children('div.actions');
+                    }

Rebuild AMD