$ git clone -n https://src.fedoraproject.org/rpms/plexus-build-api.git /var/lib/mock/f40-build-1509082-23893/root/chroot_tmpdir/scmroot/plexus-build-api
Cloning into '/var/lib/mock/f40-build-1509082-23893/root/chroot_tmpdir/scmroot/plexus-build-api'...
$ git fetch origin 8feac4a5d9db5eac48f70ae7b3531bb887a504bd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plexus-build-api
 * [new ref]         8feac4a5d9db5eac48f70ae7b3531bb887a504bd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8feac4a Rebuilt for java-21-openjdk as system jdk