Steps to reproduce the issue

Add 1 module in position 1

templates/beez3/index.php :

<jdoc:include type="modules" name="position-1" style="MyStyle1"/>
<jdoc:include type="modules" name="position-1" style="MyStyle2"/>

templates/beez3/html/modules.php

function modChrome_MyStyle1( $module, &$params, &$attribs ) {
echo 'MyStyle1';
}
function modChrome_MyStyle2( $module, &$params, &$attribs ) {
echo 'MyStyle2';
}

Expected result

Display in position-1 :
MyStyle1
MyStyle2

Actual result

Display in position-1 :
MyStyle2
MyStyle2

System information (as much as possible)

Joomla 3.9.12

Additional comments

I use this for different display (mobile, screen...)
It can be interesting to use it also with diffrents attributes for multiple call of the same postion, same style.

For exemple:
<jdoc:include type="modules" name="position-1" style="MyStyle1" mobile="1"/>
<jdoc:include type="modules" name="position-1" style="MyStyle1"/>