Spindle Control Problem

A bit of help please.
After my latest upgrade I find that the spindle speed setting is no longer modal.
For instance, if I issue
S1000
M03
either in the MDI window or in a file, the spindle does not start, however if they are both on the same line,
S1000 M03 or
M03 S1000
it works properly.
In the MDI window it shows S1000 as active.
I've searched the web and this forum an seen no mention of this problem, what am I missing?

LinuxCNC version 2.8.0-pre1-3909-g5e98296

I confirm your findings in MDI. it's the same for m4.
It seems when starting the spindle, the spindle speed must be on the same line,

There was so multi-spindle work pushed to master recently - probably a bug from it.
Chris M

I find it's non-modal in ngc files too. When I attempt to drill a pcb, the spindle spins up briefly before the first tool change, then attempts to drill the pcb with the spindle stopped. If I replace all M03 commands with M03 S10000 it works perfectly.
Thanks for your help.

I've just done a few more experiments with a Gcode file, and it appears that S is being set to 0 after a tool change.
Here's a snippet of code:
G00 Z15.0000
G00 X0.0000 Y0.0000
M03
G04 P0.500000
M05
G00 Z50.0000
G00 X2.0000 Y0.0000
M06 T02 (0.5000 )
G01 Z0.0000 F150.00
M00
G00 Z4.0000
M03
G04 P0.500000
The second M03 has no effect unless I comment out the line M06 T1, or add another S command after it.
Also I have just spotted that every time I run a program the value of S in the MDI tab is reset to 0, but maybe this is normal.

I'm now on 2.8.0-pre1-3910-gbedc7e5, and I still have the same problem. Speed and M03 have to be on the same line in MDI, and spindle speed appears to be set to 0 every time I issue a tool change. I thought that maybe I should have been setting spindle speed in the tool table, but I can't see where.
I've also just realized that I shouldn't be running the development version anyway! I must have set up the wrong repository.