\foreach initial value stored for remember key is actually in <macro>

[robert-g-liu]

Version

3.1.10

Details

For this key "/pgf/foreach/remember=<variable> as <macro> (initially <value>)" the document explains "By default
the value of <variable> is zero for the first iteration, however, the optional (initially <value>)
statement, allows the <macro> to be initially defined as <value>."

It's more appropriate to say by default the value of <macro> is zero for the first iteration. The <variable> gets a value out of the list, or gets evaluated in some way, in current iteration.