$ git clone -n https://src.fedoraproject.org/rpms/libsoup3.git /var/lib/mock/f39-build-1657433-40565/root/chroot_tmpdir/scmroot/libsoup3
Cloning into '/var/lib/mock/f39-build-1657433-40565/root/chroot_tmpdir/scmroot/libsoup3'...
$ git fetch origin b950b926a918249d6111bd229b09ee6c66c03356:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsoup3
 * [new ref]         b950b926a918249d6111bd229b09ee6c66c03356 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b950b92 3.4.4