** CF 2018 Update 2 and URL encoding/decoding **

Something in CF updates seem to be changing the default behavior of URL encoding/decoding when making cfhttp calls.  I first noticed the behavior after applying update 2 but the same breaking behavior exists in update 9 also so any update after update 1 is experiencing the problem.  In the example, sender.cfm just makes a cfhttp get call to receiver.cfm where it is processed.  Sender.cfm is a Windows 10 dev box running IIS 10 though I have reproduced the issue with the built in web server also.

sender.cfm (CF 2018, update 1)

<cfhttp method="get" url='http://example.com/receiver.cfm?q=bacon %26 eggs'></cfhttp>

receiver.cfm (any version of CF)

q = bacon & eggs

sender.cfm (CF 2018, update 2 - 9)

<cfhttp method="get" url='http://example.com/receiver.cfm?q=bacon %26 eggs'></cfhttp>

receiver.cfm (any version of CF)

q = bacon %26 eggs

I'm trying to identify why this occurred, whether it was a core change in CF or some other library, a CF admin setting change that I haven't been able to find, or some other config change (a jvm config file or some other instance config).  Is the behavior reversible without rolling back the update.

Thank you.