$ git clone -n https://src.fedoraproject.org/rpms/libasyncns.git /var/lib/mock/f45-build-15856-480/root/chroot_tmpdir/scmroot/libasyncns
Cloning into '/var/lib/mock/f45-build-15856-480/root/chroot_tmpdir/scmroot/libasyncns'...
$ git fetch origin 0743e651083d48cb739a71ddddc2700a8e4a5c99:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libasyncns
 * [new ref]         0743e651083d48cb739a71ddddc2700a8e4a5c99 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0743e65 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild