$ git clone -n https://src.fedoraproject.org/rpms/libkexiv2.git /var/lib/mock/f42-build-3340293-44983/root/chroot_tmpdir/scmroot/libkexiv2
Cloning into '/var/lib/mock/f42-build-3340293-44983/root/chroot_tmpdir/scmroot/libkexiv2'...
$ git fetch origin 3e6508d8b02c20de8fa34cebcb307d8aca010cba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libkexiv2
 * [new ref]         3e6508d8b02c20de8fa34cebcb307d8aca010cba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3e6508d 24.12.3