$ git clone -n https://src.fedoraproject.org/rpms/firefox-pkcs11-loader.git /var/lib/mock/f40-build-2278227-55263/root/chroot_tmpdir/scmroot/firefox-pkcs11-loader
Cloning into '/var/lib/mock/f40-build-2278227-55263/root/chroot_tmpdir/scmroot/firefox-pkcs11-loader'...
$ git fetch origin dfe6c5d763d7fa3353de77a2fc550e768012e775:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/firefox-pkcs11-loader
 * [new ref]         dfe6c5d763d7fa3353de77a2fc550e768012e775 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dfe6c5d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild