Special edit-config on "ordered-by user" list causes loosing of data

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Problem was found by performing "bad" edit-config XML.
What steps will reproduce the problem?
1. Content of datastore:
<nacm xmlns="urn:ietf:params:xml:ns:yang:ietf-netconf-acm">
 <rule-list>
  <rule>
   <name>permit-all-last</name>
   <module-name>*</module-name>
   <access-operations>*</access-operations>
   <action>permit</action>
  </rule>
  <rule>
   <name>permit-all-last2</name>
   <module-name>*</module-name>
   <access-operations>*</access-operations>
   <action>permit</action>
  </rule>
 </rule-list>
</nacm>

2. edit-config with the wrong key attribute that tries to move item "before 
itself":

<nacm xmlns="urn:ietf:params:xml:ns:yang:ietf-netconf-acm" 
xmlns:yang="urn:ietf:params:xml:ns:yang:1">
<rule-list>
<rule yang:insert="before" yang:key="[name='permit-all-last']">
<name>permit-all-last</name>
</rule>
</rule-list>
</nacm>

What is the expected output? What do you see instead?
In the output permit-all-last is completely missing.

Original issue reported on code.google.com by tom.cejka@gmail.com on 20 Nov 2013 at 4:07

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[deleted comment]

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Original comment by rkre...@cesnet.cz on 27 Nov 2013 at 3:02

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This issue was closed by revision ad182a7d6273.

Original comment by rkre...@cesnet.cz on 27 Nov 2013 at 4:06

• Changed state: Fixed

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This issue was closed by revision 1197f473e689.

Original comment by rkre...@cesnet.cz on 27 Nov 2013 at 4:06

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And btw - the content of the datastore in the example is not valid, there are 
missing name and group inside the rule-list.

Original comment by rkre...@cesnet.cz on 29 Nov 2013 at 9:14