$ git clone -n https://src.fedoraproject.org/rpms/rust-simple_logger.git /var/lib/mock/f40-build-2251223-54122/root/chroot_tmpdir/scmroot/rust-simple_logger
Cloning into '/var/lib/mock/f40-build-2251223-54122/root/chroot_tmpdir/scmroot/rust-simple_logger'...
$ git fetch origin 1a898f3fe3ac7df1381aad0fe4652086c82a374e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-simple_logger
 * [new ref]         1a898f3fe3ac7df1381aad0fe4652086c82a374e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1a898f3 Update to version 4.3.3; Fixes RHBZ#2256212