$ git clone -n https://src.fedoraproject.org/rpms/libkdumpfile.git /var/lib/mock/f40-build-784404-133362/root/chroot_tmpdir/scmroot/libkdumpfile
Cloning into '/var/lib/mock/f40-build-784404-133362/root/chroot_tmpdir/scmroot/libkdumpfile'...
$ git fetch origin 9f9d9d842b822ac3255137bb9f494a783e1c5432:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libkdumpfile
 * [new ref]         9f9d9d842b822ac3255137bb9f494a783e1c5432 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9f9d9d8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild