$ git clone -n https://src.fedoraproject.org/rpms/fcitx5-hangul.git /var/lib/mock/f45-build-8821-396/root/chroot_tmpdir/scmroot/fcitx5-hangul
Cloning into '/var/lib/mock/f45-build-8821-396/root/chroot_tmpdir/scmroot/fcitx5-hangul'...
$ git fetch origin bb504cdf4327772bc24d162b100536b42ea17cb1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx5-hangul
 * [new ref]         bb504cdf4327772bc24d162b100536b42ea17cb1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb504cd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild