$ git clone -n https://src.fedoraproject.org/rpms/assertj-core.git /var/lib/mock/f41-build-723316-13111/root/chroot_tmpdir/scmroot/assertj-core
Cloning into '/var/lib/mock/f41-build-723316-13111/root/chroot_tmpdir/scmroot/assertj-core'...
$ git fetch origin 8b06f7381738708afed7f29404f367a7c95aa071:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/assertj-core
 * [new ref]         8b06f7381738708afed7f29404f367a7c95aa071 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b06f73 Rebuilt for java-21-openjdk as system jdk