Update chat_template.jinja

chat_template.jinja

@@ -93,6 +93,8 @@
         {%- set reasoning_content = '' %}
         {%- if message.reasoning_content is string %}
             {%- set reasoning_content = message.reasoning_content %}
+        {%- elif message.reasoning is string %}
+            {%- set reasoning_content = message.reasoning %}
         {%- else %}
             {%- if '</think>' in content %}
                 {%- set reasoning_content = content.split('</think>')[0].rstrip('\n').split('<think>')[-1].lstrip('\n') %}
@@ -100,7 +102,7 @@
             {%- endif %}
         {%- endif %}
         {%- set reasoning_content = reasoning_content|trim %}
-        {%- if (preserve_thinking is defined and preserve_thinking is true) or (loop.index0 > ns.last_query_index) %}
+        {%- if (preserve_thinking is not defined or preserve_thinking is true) or (loop.index0 > ns.last_query_index) %}
             {{- '<|im_start|>' + message.role + '\n<think>\n' + reasoning_content + '\n</think>\n\n' + content }}
         {%- else %}
             {{- '<|im_start|>' + message.role + '\n' + content }}