Multiple variables set in Orignate AMI action are merged/joined

I am trying to use Asterisk AMI OriginateAction method to dial out calls. Calls are working fine But I am having issue on setting variables on this action. I set 2 variables as following:

oc.SetVariables( new Dictionary<string, string>(){ { "SIPADD", "10001"}, { "VQWAITER", "10002" }});

but when i try to get one of the variables “SIPADD” in dialplan. I get both vairables at once in joined form as “Local/10002|_VQWAITER=10001”

Dialplan:

exten => 999,1,NoOp((Caller ID IS: ${CALLERID(num)}))
 same =>      n,Answer()
 same =>      n,NoOp("Callback Agent Address: "${SIPADD})
 same =>      n,Dial(${SIPADD})
 same =>      n,Hangup()

Follwoing is above CLI trace of above dialplan:

Can anyone please guide me whats the issue here? I want to get these variables separately an not joined like this.

For now as a work arround i am splitting the joined string i get by doing following setps in dialplan:

 same =>      n,NoOp("Callback Agent Address: "${SIPADD})
 same =>      n,Set(localSIPAdd=${CUT(SIPADD,|,1)})
 same =>      n,Set(waiter=${CUT(SIPADD,|,2)})
 same =>      n,NoOp("localSIP: "${localSIPAdd})
 same =>      n,NoOp("waiter: "${waiter})
 same =>      n,Set(CALLERID(num)=waiter)

CLI for above change:

My question on stackoverflow: https://stackoverflow.com/questions/59825353/originateaction-variables-joining-issue-asterisk

[zeeshanalikhan15]

@Deantwo
core show version Asterisk 16.6.2 built by mockbuild @ jenkins7 on a x86_64 running Linux on 2019-11-22 00:56:40 UTC

[Deantwo]

Workaround

After connecting to the AIM, do the following:

managerConnection.VAR_DELIMITER = new char[] { ',' };