$ git clone -n https://src.fedoraproject.org/rpms/wike.git /var/lib/mock/f45-build-38376-723/root/chroot_tmpdir/scmroot/wike
Cloning into '/var/lib/mock/f45-build-38376-723/root/chroot_tmpdir/scmroot/wike'...
$ git fetch origin 819b88c607f9ce0586eeeb5164f2f8adadb35a0f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wike
 * [new ref]         819b88c607f9ce0586eeeb5164f2f8adadb35a0f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 819b88c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild