With the upgrade to 4.1 I ran into the same issue with Widget duplication on the Administrator Dashboard as others. As I was digging into it, I noticed that the new copies of the dashboards seem to have replaced {0 TO *} syntax with just a general NOT 0 syntax. Here's an example:
Top-N: VMs CPU Ready Latest
Old query| vm.powerstate:poweredOn AND vm.cpuReady.latest:{0 TO *}
New query| vm.powerstate:poweredOn AND -vm.cpuReady.latest:0
I'm curious what the difference is in the searches. Does this have a performance benefit?