$ git clone -n https://src.fedoraproject.org/rpms/libcdr.git /var/lib/mock/f40-build-780064-130662/root/chroot_tmpdir/scmroot/libcdr
Cloning into '/var/lib/mock/f40-build-780064-130662/root/chroot_tmpdir/scmroot/libcdr'...
$ git fetch origin daeec49f10e0d4135ee17fee6b82af27e12554d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libcdr
 * [new ref]         daeec49f10e0d4135ee17fee6b82af27e12554d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at daeec49 Rebuild for ICU 74