ProtoOATrendbars - delta high incorrect

[ArchNemSyS]

When receiving historical delta encoded trendbars, deltaHigh is incorrectly encoded as zero.

This appears to be a logic error on the server side delta encoder it only occurs when deltaClose is also encoded as zero.

deltaHigh cannot be zero that is equal to low
unless deltaOpen and deltaClose are also zero

A request for 50 days worth of bar data will contain a few hundred of these errors; appears to effect all symbols I can request data for.

examples:

symbolID: 242 symbolname: XAUUSD_SB

utcTimestampInMinutes	low	deltaOpen	deltaClose	deltaHigh	source
29644250	470257000	614000	0	0	OpenAPI
29644250	470257000	470871000	470257000	470257000	OpenAPI - de-deltaed
2026-05-13 06:50:00	470257000	470871000	470257000	470876000	cTrader Web

symbolID: 200 symbolname: GBPUSD_SB

utcTimestampInMinutes	low	deltaOpen	deltaClose	deltaHigh	source
29643965	135395	49	0	0	OpenAPI
29643965	135395	135444	135395	135395	OpenAPI - de-deltaed
2026-05-13 02:05:00	135395	135444	135395	135460	cTrader Web

notably this error is not in other Spotware data-streams for the same provider only the openAPI.
The cTrader Web values agree with those calculated from tickdata.