$ git clone -n https://src.fedoraproject.org/rpms/gajim.git /var/lib/mock/f40-build-2278689-55279/root/chroot_tmpdir/scmroot/gajim
Cloning into '/var/lib/mock/f40-build-2278689-55279/root/chroot_tmpdir/scmroot/gajim'...
$ git fetch origin d4566b6028b5fa5e4014b4302adb832c07f4ef66:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gajim
 * [new ref]         d4566b6028b5fa5e4014b4302adb832c07f4ef66 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d4566b6 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild