WiX skip uninstall registry set to 1 and during upgrade uninstall all unnecessary stuff

I have a problem during my WiX upgrade - after normal installation of my program for example in version 1.0 I am installing all necessary stuff like RabbitMQ, Erlang and so on but if I want to upgrade same program to version 2.0 during upgrade all the stuff is uninstalled - I do not want to do this...

There is Custom Action defined like UninstallRabbitMQ and condition is added:

        <Custom Action="SetUninstallErlang" Before="UninstallErlang"></Custom>
        <Custom Action="UninstallErlang" After="UninstallHandleExe">(REMOVE="ALL") AND (SKIP_UNINSTALL_ERLANG="0")</Custom>
        
        <Custom Action="SetUninstallRabbit" Before="UninstallRabbit" />
        <Custom Action="UninstallRabbit" Before="UninstallErlang">(REMOVE="ALL") AND (SKIP_UNINSTALL_RABBITMQ="0")</Custom>

SKIP_UNINSTALL_RABBITMQ="0" means if that property equals 0 it will execute but in my registry after installation that value is equal to 1.

The only place in code where this is used is here:

    <Property Id="SKIP_UNINSTALL_HANDLEEXE_SEARCH" Secure="yes">
        <RegistrySearch Id="SKIP_UNINSTALL_HANDLEEXESearch"
                                              Root="HKLM"
                                              Key="Software\PRO\ServerPrereq"
                                              Name="SKIP_UNINSTALL_HANDLEEXE"
                                              Type="raw" />
    </Property>
    <SetProperty Id="SKIP_UNINSTALL_HANDLEEXE" Value="[SKIP_UNINSTALL_HANDLEEXE_SEARCH]" Sequence="both" After="AppSearch">(WIX_UPGRADE_DETECTED OR Installed) AND SKIP_UNINSTALL_HANDLEEXE_SEARCH</SetProperty>

    <Property Id="SKIP_UNINSTALL_ERLANG_SEARCH" Secure="yes">
        <RegistrySearch Id="SKIP_UNINSTALL_ERLANGSearch"
                                              Root="HKLM"
                                              Key="Software\PRO\ServerPrereq"
                                              Name="SKIP_UNINSTALL_ERLANG"
                                              Type="raw" />
    </Property>
    <SetProperty Id="SKIP_UNINSTALL_ERLANG" Value="[SKIP_UNINSTALL_ERLANG_SEARCH]" Sequence="both" After="AppSearch">(WIX_UPGRADE_DETECTED OR Installed) AND SKIP_UNINSTALL_ERLANG_SEARCH</SetProperty>

    <Property Id="SKIP_UNINSTALL_RABBITMQ_SEARCH" Secure="yes">
        <RegistrySearch Id="SKIP_UNINSTALL_RABBITMQSearch"
                                              Root="HKLM"
                                              Key="Software\PRO\ServerPrereq"
                                              Name="SKIP_UNINSTALL_RABBITMQ"
                                              Type="raw" />
    </Property>
    <SetProperty Id="SKIP_UNINSTALL_RABBITMQ" Value="[SKIP_UNINSTALL_RABBITMQ_SEARCH]" Sequence="both" After="AppSearch">(WIX_UPGRADE_DETECTED OR Installed) AND SKIP_UNINSTALL_RABBITMQ_SEARCH</SetProperty>

and definition in Product.wsx

    <Property Id="SKIP_UNINSTALL_HANDLEEXE" Value="0" />
    <Property Id="SKIP_UNINSTALL_ERLANG" Value="0" />
    <Property Id="SKIP_UNINSTALL_RABBITMQ" Value="0" />

so there is no place where value is changing

Now the problem is here:

1. I'm installing version 1.0 - RabbitMq and Erlang are installed properly - SKIP_UNINSTALL SET TO 0
2. I'm upgrading to version 2.0 - upgrade uninstall whole previous verions and install new - I have me skip uninstall set to 0 so it should skip uninstall but If i run same .msi with higher version this value will be changed to 1 and it will uninstall it that causes the problem when instller tries to configure RabbitMq but it is missing because of changed value of SKIP_UNINSTALL

how to catch that change - it is never set in code