Summary

using brush on end portals or nether portals creates causes an particles just like MC-261141

Step to reproduce

1. create any portals like nether portal/end portal or using via commands
2. take a Brush
3. for pocket edition Use of action buttons
4. hold to brush into nether portal/end portal or end gateways  

Observed result

The nether/end portal particles are created 

Expected behaviour

using brush should not creating particles from nether/end portal