I've seen a fair bit of noise about "false positives," and have even encountered them, myself.
However, this takes the cake.
Easy to reproduce, using Swift 5/Xcode 10.2, create a new single-view iOS app.
Run Leaks.
You get these critters:
Malloc 64 Bytes 1 0x600001d084c0 64 Bytes Foundation +[NSString stringWithUTF8String:]
Malloc 16 Bytes 3 < multiple > 48 Bytes
Malloc 1.50 KiB 3 < multiple > 4.50 KiB
Malloc 32 Bytes 3 < multiple > 96 Bytes
Malloc 8.00 KiB 1 0x7fc56f000c00 8.00 KiB
Malloc 64 Bytes 10 < multiple > 640 Bytes
Malloc 80 Bytes 3 < multiple > 240 Bytes
Malloc 4.00 KiB 3 < multiple > 12.00 KiB
Using the simulator (XR, iOS 12.2).
That first one has a stack trace, but it's worthless.
Is there some way that I can correct for this noise? I'm writing an infrastructure component, and I need to:
A) Make damn sure it doesn't leak, and
B) Not have every Cocoapod jockey on Earth emailing me, and telling me that my component leaks.