$ git clone -n https://src.fedoraproject.org/rpms/httpcomponents-core.git /var/lib/mock/f39-build-1840233-41978/root/chroot_tmpdir/scmroot/httpcomponents-core
Cloning into '/var/lib/mock/f39-build-1840233-41978/root/chroot_tmpdir/scmroot/httpcomponents-core'...
$ git fetch origin 6139d6978d97052c5c1ebd23c730a798c0bce72a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/httpcomponents-core
 * [new ref]         6139d6978d97052c5c1ebd23c730a798c0bce72a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6139d69 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild