$ git clone -n https://src.fedoraproject.org/rpms/objectweb-asm.git /var/lib/mock/f40-build-1978790-25236/root/chroot_tmpdir/scmroot/objectweb-asm
Cloning into '/var/lib/mock/f40-build-1978790-25236/root/chroot_tmpdir/scmroot/objectweb-asm'...
$ git fetch origin 077b979cf0516ff785f687d37c6d7628d260e53e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/objectweb-asm
 * [new ref]         077b979cf0516ff785f687d37c6d7628d260e53e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 077b979 Rebuilt for java-21-openjdk as system jdk