Dear all,
I want to share my experiences with you. The bug has been fixed three days ago (see DST bug fix in 2.3.0-SNAPSHOT and https://github.com/eclipse/smarthome/pull/5299). I upgraded my live environment to snapshot version #1238 on Friday directly after @Kai had announced it in the community. For me everything worked fine last night. I just checked my persistence (rrd4j), logs and system. Neither I found cut offs in my charts nor related entries in the log file. My environment runs fine w/o high cpu usage.