$ git clone -n https://src.fedoraproject.org/rpms/znc.git /var/lib/mock/f42-build-862684-171015/root/chroot_tmpdir/scmroot/znc
Cloning into '/var/lib/mock/f42-build-862684-171015/root/chroot_tmpdir/scmroot/znc'...
$ git fetch origin 95993e313fd83ac507bd4c0daf7e6a6da6e81031:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/znc
 * [new ref]         95993e313fd83ac507bd4c0daf7e6a6da6e81031 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 95993e3 Rebuild for ICU 76