Loop Controller causes "Existing CookieManager HTTP Cookie Manager superseded by HTTP Cookie Manager"

### Expected behavior

When using a request which sets a Cookie inside a Loop no Warnings should be written to log.

If the same requests are executed outside the Loop no Warning is written in log - see Screenshot:

### Actual behavior

When using a request which sets a Cookie inside a Loop this Warning is written to log
`WARN o.a.j.p.h.s.HTTPSamplerBase: Existing CookieManager HTTP Cookie Manager superseded by HTTP Cookie Manager`

### Steps to reproduce the problem

Run `CookieManagerLoopWarning.jmx` (inside attached zip file)
compoare with running `CookieManagerNoWarning.jmx`

[CookieManagerWarning.zip](https://github.com/apache/jmeter/files/14199522/CookieManagerWarning.zip)

### JMeter Version

5.6.3

### Java Version

openjdk 11.0.21

### OS Version

Windows 10