Show multiple issue links in CHANGELOG entries

Restores the functionality removed in PR #2488.

AUTHORS

@@ -120,6 +120,7 @@ Michael Birtwell
 Michael Droettboom
 Michael Seifert
 Michal Wajszczuk
+Mihai Capotă
 Mike Lundy
 Ned Batchelder
 Neven Mundar

changelog/2620.trivial

@@ -0,0 +1 @@
+Show multiple issue links in CHANGELOG entries.

changelog/_template.rst

@@ -13,7 +13,8 @@
 
 {% if definitions[category]['showcontent'] %}
 {% for text, values in sections[section][category]|dictsort(by='value') %}
-- {{ text }}{% if category != 'vendor' %} (`{{ values[0] }} <https://github.com/pytest-dev/pytest/issues/{{ values[0][1:] }}>`_){% endif %}
+{% set issue_joiner = joiner(', ') %}
+- {{ text }}{% if category != 'vendor' %} ({% for value in values|sort %}{{ issue_joiner() }}`{{ value }} <https://github.com/pytest-dev/pytest/issues/{{ value[1:] }}>`_{% endfor %}){% endif %}
 
 
 {% endfor %}