bug: incorrect display of `eza -T --absolute /full/path`

[j-xella]

Version: v0.18.15 [+git]

~/tmp/20240516 22:05:52$ mkdir -p a/b/c/d

# this output is OK
~/tmp/20240516 22:06:00$ eza -TD --absolute a
/users/xxx/tmp/20240516/a
└── /users/xxx/tmp/20240516/a/b
   └── /users/xxx/tmp/20240516/a/b/c
      └── /users/xxx/tmp/20240516/a/b/c/d

# this one is NOT - path repeated twice in the root dir
~/tmp/20240516 22:06:21$ eza -TD --absolute $PWD/a
/users/xxx/tmp/20240516//users/xxx/tmp/20240516/a
└── /users/xxx/tmp/20240516/a/b
   └── /users/xxx/tmp/20240516/a/b/c
      └── /users/xxx/tmp/20240516/a/b/c/d