Memory leak with FeedMe & Multi-Site

[gixxy22]

When using FeedMe to import say 300 entries into a section with only one site enabled, the memory limit stays more or less the same for each entry.

When enabling multi-site, for example 10 sites and "Save entries to all sites enabled for this section" is selected, the memory increases by a few MB for each entry until it finally errors out with max memory limit error.

I have tested by importing just the title in production mode with no logging, it looks like there is a memory leak somewhere when multi site is enabled.