Sometimes during booting the text console font size gets changed

[Mikus Grinbergs]

G1G1, recent software.  The "non-pretty-boot" text starts out small 
but readable.  Randomly, at about the time the message "Entering 
non-interactive startup" is output, the text console may switch to a 
smaller (and harder to read) font.  But on other boot occasions the 
text console continues to use the original (easier to read) font.

How come this inconsistency ?

mikus