This is only seen in Beryllium. To reproduce:

1) Push regular flow:

<flow xmlns="urn:opendaylight:flow:inventory">
<id>285</id>
<instructions>
<instruction>
<order>0</order>
<apply-actions>
<action>
<order>0</order>
<output-action>
<output-node-connector>2</output-node-connector>
</output-action>
</action>
</apply-actions>
</instruction>
</instructions>
<hard-timeout>0</hard-timeout>
<match>
<ethernet-match>
<ethernet-type>
<type>2048</type>
</ethernet-type>
</ethernet-match>
<ipv4-destination>10.0.10.0/24</ipv4-destination>
</match>
<flow-name>flow1</flow-name>
<priority>162</priority>
<table_id>0</table_id>
<idle-timeout>0</idle-timeout>
</flow>

2) Delete and Push same flow with different ID (286) with no pause in between:

<flow xmlns="urn:opendaylight:flow:inventory">
<id>286</id>
<instructions>
<instruction>
<order>0</order>
<apply-actions>
<action>
<order>0</order>
<output-action>
<output-node-connector>2</output-node-connector>
</output-action>
</action>
</apply-actions>
</instruction>
</instructions>
<hard-timeout>0</hard-timeout>
<match>
<ethernet-match>
<ethernet-type>
<type>2048</type>
</ethernet-type>
</ethernet-match>
<ipv4-destination>10.0.10.0/24</ipv4-destination>
</match>
<flow-name>flow1</flow-name>
<priority>162</priority>
<table_id>0</table_id>
<idle-timeout>0</idle-timeout>
</flow>

3) Check operational flow has the old ID (285):

<?xml version="1.0" encoding="UTF-8"?>
<flow>
<id>285</id>
<instructions>
<instruction>
<order>0</order>
<apply-actions>
<action>
<order>0</order>
<output-action>
<output-node-connector>2</output-node-connector>
<max-length>0</max-length>
</output-action>
</action>
</apply-actions>
</instruction>
</instructions>
<cookie>0</cookie>
<match>
<ethernet-match>
<ethernet-type>
<type>2048</type>
</ethernet-type>
</ethernet-match>
<ipv4-destination>10.0.10.0/24</ipv4-destination>
</match>
<hard-timeout>0</hard-timeout>
<flags />
<priority>162</priority>
<table_id>0</table_id>
<flow-statistics xmlns="urn:opendaylight:flow:statistics">
<packet-count>0</packet-count>
<byte-count>0</byte-count>
<duration>
<nanosecond>34000000</nanosecond>
<second>8</second>
</duration>
</flow-statistics>
<idle-timeout>0</idle-timeout>
</flow>