the y-axis coordinates will clot if have multiple pane overlays

[fusying-hwang]

I drawed two panes, the upper one is candle stick for ohlc, and the bottom one is for volume. and for both panes, I added a overlay.
For the ohlc pane the overlay and it's corresponding y-coordinates (to the left) showed normaly, but if I want to also show the overlay y-coordinates for the bottom one, it will clot with the first one. Check there's an inconspicuous "0" between 40 and 20. It shoule be shown in the volume pane.

Thanks for your effort to create such an amazing lib.

[highfestiva]

Please send a minimal, working, complete code example that I can run to reproduce the error.