$ git clone -n https://src.fedoraproject.org/rpms/rust-zip.git /var/lib/mock/f42-build-side-1-3510476-46033/root/chroot_tmpdir/scmroot/rust-zip
Cloning into '/var/lib/mock/f42-build-side-1-3510476-46033/root/chroot_tmpdir/scmroot/rust-zip'...
$ git fetch origin 56358d4ce46ca051e9e902b3dbf24a78d00b921a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-zip
 * [new ref]         56358d4ce46ca051e9e902b3dbf24a78d00b921a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 56358d4 Update to version 2.6.1; Fixes RHBZ#2352783