$ git clone -n https://src.fedoraproject.org/rpms/java-runtime-decompiler.git /var/lib/mock/f40-build-2475210-61566/root/chroot_tmpdir/scmroot/java-runtime-decompiler
Cloning into '/var/lib/mock/f40-build-2475210-61566/root/chroot_tmpdir/scmroot/java-runtime-decompiler'...
$ git fetch origin fb1a3765b7e164c5652f122b2000f63550cdc2c4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/java-runtime-decompiler
 * [new ref]         fb1a3765b7e164c5652f122b2000f63550cdc2c4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fb1a376 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild