~/duplicate-test.xml.html

In the chat:
11:18:35 BUDDY> test
11:18:35 BUDDY> test

In the XML:

11:18:32 IN  <message from="georg@yax.im" type="chat" to="georg@yax.im/poezio.RND" id="ac3c91c5-31d6-4f76-a5ee-c1df7328aec9-13638">
	<received xmlns="urn:xmpp:carbons:2">
		<forwarded xmlns="urn:xmpp:forward:0">
			<message xmlns="jabber:client" from="BUDDY@yax.im/GAJIM"
				type="chat" to="georg@yax.im/poezio.RND" id="202">
				<thread>wbXQLhOmruRXoxfAEWwkFTvGwxAIpuGG</thread>
				<html xmlns="http://jabber.org/protocol/xhtml-im" />
			</message>
		</forwarded>
	</received>
</message>

11:18:34 IN  <message from="georg@yax.im" type="chat" to="georg@yax.im/poezio.RND" id="ac3c91c5-31d6-4f76-a5ee-c1df7328aec9-13639">
	<received xmlns="urn:xmpp:carbons:2">
		<forwarded xmlns="urn:xmpp:forward:0">
			<message xmlns="jabber:client" from="BUDDY@yax.im/GAJIM"
				type="chat" to="georg@yax.im/poezio.RND" id="203">
				<thread>wbXQLhOmruRXoxfAEWwkFTvGwxAIpuGG</thread>
				<html xmlns="http://jabber.org/protocol/xhtml-im" />
			</message>
		</forwarded>
	</received>
</message>

11:18:35 IN  <message from="georg@yax.im" type="chat" to="georg@yax.im/poezio.RND" id="ac3c91c5-31d6-4f76-a5ee-c1df7328aec9-1363A">
	<received xmlns="urn:xmpp:carbons:2">
		<forwarded xmlns="urn:xmpp:forward:0">
			<message xmlns="jabber:client" from="BUDDY@yax.im/GAJIM"
				type="chat" to="georg@yax.im/poezio.RND" id="204">
				<body>test</body>
				<request xmlns="urn:xmpp:receipts" />
				<thread>wbXQLhOmruRXoxfAEWwkFTvGwxAIpuGG</thread>
				<html xmlns="http://jabber.org/protocol/xhtml-im" />
				<replace xmlns="urn:xmpp:message-correct:0" />
			</message>
		</forwarded>
	</received>
</message>

11:18:35 IN  <message from="georg@yax.im" id="ac3c91c5-31d6-4f76-a5ee-c1df7328aec9-1363B" to="georg@yax.im/poezio.RND">
	<sent xmlns="urn:xmpp:carbons:2">
		<forwarded xmlns="urn:xmpp:forward:0">
			<message xmlns="jabber:client"
				from="georg@yax.im/poezio.RND" id="8335w-31" to="BUDDY@yax.im/GAJIM">
				<received xmlns="urn:xmpp:receipts" id="204" />
				<html xmlns="http://jabber.org/protocol/xhtml-im" />
			</message>
		</forwarded>
	</sent>
</message>

In the DEBUG log:

2015-06-15 11:18:35,522 DEBUG:xmlstream:Event triggered: carbon_received
2015-06-15 11:18:35,534 DEBUG:text_buffer:Set message 204 with Message(, txt='test\x19o', nick_color=(5, -1), time=datetime.datetime(2015, 6, 15, 11, 18, 35, 534460), str_time='11:18:35', nickname='BUDDY', user=None, identifier='204', highlight=False, me=False, revisions=0, jid=BUDDY@yax.im/GAJIM, ack=0, old_message=None).
2015-06-15 11:18:35,536 DEBUG:info_bar:Refresh: GlobalInfoBar
2015-06-15 11:18:35,538 DEBUG:input_placeholders:Refresh: HelpText
2015-06-15 11:18:35,549 DEBUG:text_buffer:Set message 204 with Message(, txt='test\x19o', nick_color=(5, -1), time=datetime.datetime(2015, 6, 15, 11, 18, 35, 549535), str_time='11:18:35', nickname='BUDDY', user=None, identifier='204', highlight=False, me=False, revisions=0, jid=BUDDY@yax.im/GAJIM, ack=0, old_message=None).
2015-06-15 11:18:35,551 DEBUG:info_bar:Refresh: GlobalInfoBar
2015-06-15 11:18:35,553 DEBUG:input_placeholders:Refresh: HelpText