$ git clone -n https://src.fedoraproject.org/rpms/libspelling.git /var/lib/mock/f42-build-862630-170967/root/chroot_tmpdir/scmroot/libspelling
Cloning into '/var/lib/mock/f42-build-862630-170967/root/chroot_tmpdir/scmroot/libspelling'...
$ git fetch origin f4bcba5367287898a22361d3600f9b4fbe5c12eb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libspelling
 * [new ref]         f4bcba5367287898a22361d3600f9b4fbe5c12eb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f4bcba5 Rebuild for ICU 76