fdepth (current height of the stack) dont return a value into the float stack

[Pascal Dag]

from here (in gforth)

https://github.com/forthy42/gforth/blob/master/float.fs

: fdepth ( -- +n ) \ floating f-depth
    \G @i{+n} is the current number of (floating-point) values on the
    \G floating-point stack.
    fp0 @ fp@ - [ 1 floats ] Literal / ;

: TEST2 ( -- r1 r2 r3 r4 )
    CLEARSTACKS
    0.0e
    0.0e
    2.0e

    FDEPTH

    F.S ;

test2 <3> 0.000000000000E0 0.000000000000E0 2.000000000000E0  ok

I would expect to see  0.0e  0.0e  2.0e  3.0e.

gforth 0.7.3 fromDebian 11.

uname -a
Linux ProDesk 5.10.0-23-amd64 #1 SMP Debian 5.10.179-1 (2023-05-12) x86_64 GNU/Linux

apt list gforth
Listing... Done
gforth/stable,now 0.7.3+dfsg-9+b1 amd64 [installed]
gforth/stable 0.7.3+dfsg-9+b1 i386

Any remark / comment is welcome.