After upgrade it was noticed that the DOIConfig.xml file was over written by the installer.
Incorrect syntax in the file causes it to be overwritten
We have identified an issue where the use of the `<tags>` XML node in the `DOIConfig.xml` file is causing OI to lose its value during the upgrade process.
To ensure the value is retained, please use the `<tag>` node instead of `<tags>` in the `DOIConfig.xml` file.
Expected xml tag in DOIConfig.xml
<DoiPropertiesToInvAttrs>
<host>0x1006e</host>
<tag>0x673006e</tag>
<product>dynamic</product>
....
</DoiPropertiesToInvAttrs>
<DoiPropertiesToAlarmAttrs>
<globalAlarmID>0x11f9c</globalAlarmID>
<host>0x1006e</host>
<ip>0x12d7f</ip>
<tag>0x673006e</tag>
....
</DoiPropertiesToAlarmAttrs>
This should preserve the changes during upgrades.