$ git clone -n https://src.fedoraproject.org/rpms/ant-antunit.git /var/lib/mock/f40-build-748949-13347/root/chroot_tmpdir/scmroot/ant-antunit
Cloning into '/var/lib/mock/f40-build-748949-13347/root/chroot_tmpdir/scmroot/ant-antunit'...
$ git fetch origin 2fbe0286e910b7360e4779c99a2784e249f7b175:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ant-antunit
 * [new ref]         2fbe0286e910b7360e4779c99a2784e249f7b175 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2fbe028 Rebuilt for java-21-openjdk as system jdk