Mac Activity Monitor says KBFS is using 18GB of RAM

MacBook Pro with 16GB RAM. This may not be a serious problem given that I've been copying groups of files into KBFS. The largest was a 700MB group of files, and I didn't let KBFS relax before doing the next group of files. As things got slow keybase noticed and asked me to send logs. I then checked Mac Activity Monitor. kbfs appears to have exploded in memory usage (some of it must actually be virtual memory since I only have 16GB of RAM on this machine.)

my log id: 15d717316c201456bc46e71c

There is nothing I need right now. I'm just letting keybase catch up with all the encryption it needs to do.

No source file or test is identified in the issue. Start by reviewing the supplied log ID and reproducing the reported sequence of copying file groups into KBFS while watching Mac Activity Monitor; done means identifying and addressing the excessive memory growth, with the behavior verified under that workload.

Written by the indexing model from the issue text.