$ git clone -n https://src.fedoraproject.org/rpms/BibTool.git /var/lib/mock/f40-build-2274574-55013/root/chroot_tmpdir/scmroot/BibTool
Cloning into '/var/lib/mock/f40-build-2274574-55013/root/chroot_tmpdir/scmroot/BibTool'...
$ git fetch origin 7f39948c9baac944bb1c902dfdf52f267c4dbe7b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/BibTool
 * [new ref]         7f39948c9baac944bb1c902dfdf52f267c4dbe7b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7f39948 fix build with gcc 14