$ git clone -n https://src.fedoraproject.org/rpms/xmlunit.git /var/lib/mock/f40-build-2632700-65887/root/chroot_tmpdir/scmroot/xmlunit
Cloning into '/var/lib/mock/f40-build-2632700-65887/root/chroot_tmpdir/scmroot/xmlunit'...
$ git fetch origin 724e9ff95875afcace28c700e4eff2ce0740b36a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xmlunit
 * [new ref]         724e9ff95875afcace28c700e4eff2ce0740b36a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 724e9ff Rebuilt for java-21-openjdk as system jdk