$ git clone -n https://src.fedoraproject.org/rpms/f2c.git /var/lib/mock/f39-build-2456753-61439/root/chroot_tmpdir/scmroot/f2c
Cloning into '/var/lib/mock/f39-build-2456753-61439/root/chroot_tmpdir/scmroot/f2c'...
$ git fetch origin b7726534937a4c2ec566ffea0cd5b804f20c6f31:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/f2c
 * [new ref]         b7726534937a4c2ec566ffea0cd5b804f20c6f31 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b772653 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild