$ git clone -n https://src.fedoraproject.org/rpms/httpcomponents-core.git /var/lib/mock/f40-build-2725238-73114/root/chroot_tmpdir/scmroot/httpcomponents-core
Cloning into '/var/lib/mock/f40-build-2725238-73114/root/chroot_tmpdir/scmroot/httpcomponents-core'...
$ git fetch origin 0a6ac361b90f0c908d95ad3d50f8e1042ea158b5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/httpcomponents-core
 * [new ref]         0a6ac361b90f0c908d95ad3d50f8e1042ea158b5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0a6ac36 Rebuilt for java-21-openjdk as system jdk